{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn05017_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Helena, Montana | 1890 | mapsnap generated fit (2026-09-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-22"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"44"},{"label":"placed","value":"34"},{"label":"unplaced","value":"10"},{"label":"fit sources","value":"georef-snap 20, georef 14"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"7 sheet(s) cut into 15 panels"},{"label":"unplaced pages","value":"p1 (tier 1, 46.58548,-112.04020 +/-264m); p13__2 (tier 1, 46.58334,-112.04295 +/-100m); p13__3 (tier 1, 46.58356,-112.04416 +/-111m); p26__1 (tier 1, 46.60483,-112.03074 +/-256m); p26__2 (tier 1, 46.60374,-112.02786 +/-123m); p33__2 (tier 1, 46.58654,-112.03354 +/-100m); p34__1 (tier 4, 46.59054,-112.03166 +/-1978m); p34__2 (tier 4, 46.59054,-112.03166 +/-1978m); p35 (tier 4, 46.59054,-112.03166 +/-1978m); p36 (tier 4, 46.59054,-112.03166 +/-1978m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0010/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0010/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"826.1,7183.8 821.6,2437.1 445.4,2329.1 508.8,980.8 1160.2,972.3 1137.7,1764.6 5113.5,1631.4 5102.1,820.9 5964.1,780.7 5956.4,7186.3 826.1,7183.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0010/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.04026052621192,46.58385861583319]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.03807217499312,46.58645362603953]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.0336255766677,46.584657282482176]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.03581392788651,46.58206227227584]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p11","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0011/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0011/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7154.7 569.1,5152.0 618.3,528.6 5626.0,682.0 5637.3,1552.7 6452.0,1573.5 6452.0,5587.9 5656.8,5533.7 5646.4,6191.2 6452.0,6261.2 6452.0,7192.0 5626.0,7488.0 4517.4,7007.5 3832.8,6980.7 3716.7,7333.2 3627.9,7114.8 3351.3,7652.0 -0.0,7652.0 -0.0,7154.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5624.0,680.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.037784,46.5860741]}},{"type":"Feature","properties":{"resourceCoords":[5624.0,7488.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.039939,46.58331]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p12","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0012/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0012/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5924.4,1570.6 5955.0,5649.7 5514.4,7652.0 -0.0,7652.0 -0.0,0.0 156.4,0.0 388.1,1945.9 777.0,2702.2 5726.2,342.1 5924.4,1570.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1404.0,3920.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.044281,46.587101]}},{"type":"Feature","properties":{"resourceCoords":[4392.0,2680.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.042113,46.586915]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0013__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p13 [1]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0013__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0013/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,0.0 3674.2,0.0 3215.4,330.5 2668.3,452.0 1565.0,0.0 885.8,0.0 783.4,337.6 690.9,123.8 593.1,191.1 430.6,659.7 -0.0,668.5 -0.0,7652.0 2772.0,7652.0 3181.2,7652.0 3238.0,4963.2 4648.4,4979.2 4690.0,2582.8 6452.0,2607.6 6452.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0013__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.04136996114953,46.584104874587624]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.0375443526577,46.582626728937115]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.04010391799935,46.57951921749101]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.04392952649117,46.58099736314152]}},{"type":"Feature","properties":{"resourceCoords":[2668.0,452.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.039939,46.58331]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0014__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p14 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0014__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0014/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"701.4,4941.5 604.0,6701.0 0.0,6667.5 0.0,7652.0 816.0,7652.0 1937.6,7652.0 4208.9,7652.0 3992.5,7285.4 6452.0,7259.1 6452.0,2482.2 6074.7,2376.1 6100.7,1833.9 5175.9,1869.6 5323.7,2067.8 5375.0,4870.1 701.4,4941.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0014__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4600.0,5120.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.037664,46.5822576]}},{"type":"Feature","properties":{"resourceCoords":[444.0,5120.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.0390805,46.5805976]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0014__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p14 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2397.2"},{"label":"split_canvas_h","value":"4438.4"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0014__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0014/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"648.9,0.0 673.9,353.0 -0.0,794.3 0.0,4424.0 2377.2,4438.4 2397.2,0.0 648.9,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0014__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1244.6,3314.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.0400058,46.579298]}},{"type":"Feature","properties":{"resourceCoords":[840.4,243.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.0390805,46.5805976]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p15","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0015/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0015/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6401.2,7621.2 -0.0,3852.8 86.6,-0.0 163.5,95.1 6199.7,146.4 6198.7,-0.0 6452.0,-0.0 6401.2,7621.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0015/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.03149085584172,46.58454194398077]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.03144984793754,46.581517699231746]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.03663182415033,46.581484036426886]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.03667283205452,46.58450828117591]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0016__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p16 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0016__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0016/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6057.8,7323.3 6055.1,449.7 4618.6,442.3 3902.0,204.2 3833.1,313.0 3833.3,93.2 2162.7,3044.7 2099.2,3331.2 1984.7,3359.2 -0.0,6865.8 -0.0,7219.2 6057.8,7323.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0016__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4380.0,4132.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.030991,46.585965]}},{"type":"Feature","properties":{"resourceCoords":[4380.0,5728.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.030993,46.585224]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0016__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p16 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"5"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2838.0"},{"label":"split_canvas_h","value":"3845.2"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0016__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0016/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2281.4,0.0 0.0,0.0 -0.0,1271.5 1018.0,1285.0 -0.0,3042.8 -0.0,3257.2 67.0,3151.1 765.3,3382.7 1869.7,3387.4 2099.2,3331.2 2273.1,2546.9 2281.4,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0016__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2270.4,1272.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.029776,46.588684]}},{"type":"Feature","properties":{"resourceCoords":[2270.4,3389.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.02978,46.587675]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p17","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0017/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0017/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"108.3,176.7 109.2,0.0 6452.0,109.6 6452.0,7652.0 4485.1,7652.0 4474.9,6968.6 -0.0,6996.4 -0.0,176.1 108.3,176.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0017/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.02985315131026,46.587757854206274]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.02548572494423,46.587753407743996]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.02549334427701,46.58416844648439]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.02986077064304,46.58417289294667]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p18","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0018/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0018/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6250.4,46.9 6319.4,7444.0 217.4,7263.0 272.9,3974.5 -0.0,3970.8 -0.0,-0.0 6250.4,46.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0018/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.02997888294951,46.59114128958846]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.0256344448625,46.5911740621153]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.0255782832722,46.587608193409835]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.0299227213592,46.58757542088299]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p19","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0019/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0019/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"246.3,7453.0 130.6,0.0 6452.0,0.0 6452.0,7429.8 246.3,7453.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0019/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.02585722742495,46.59115090843023]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.02154119514809,46.59116496134877]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.0215171129426,46.58762240995167]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.02583314521947,46.58760835703313]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p2","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0002/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3481.1,339.8 3281.0,0.0 6452.0,0.0 6452.0,7652.0 1174.9,7652.0 1181.3,6324.0 879.3,6318.8 899.9,2407.2 0.0,2795.9 112.8,2322.5 3481.1,339.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3940.0,2812.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.0347842,46.5929589]}},{"type":"Feature","properties":{"resourceCoords":[10436.0,6364.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.0304643,46.5947651]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p20","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0020/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0020/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6336.8,382.1 6333.6,0.0 6452.0,0.0 6452.0,7652.0 411.4,7652.0 396.1,453.7 6336.8,382.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0020/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.02574928177998,46.58791246530113]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.0214399614517,46.58790171407726]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.02145838450328,46.58436445947202]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.02576770483155,46.58437521069589]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0021/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p21","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0021/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0021/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"277.7,7430.5 199.8,7332.7 338.8,296.3 1037.6,298.2 1042.9,-0.0 6452.0,-0.0 6452.0,7525.3 277.7,7430.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0021/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.02663852052227,46.584647442632196]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.02656915401032,46.581691295870264]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.03163446208342,46.581634354070594]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.03170382859537,46.584590500832526]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0022/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p22","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0022/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0022/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7652.0 -0.0,-0.0 1821.6,0.0 1824.1,304.8 6075.8,210.9 6145.4,2204.8 5974.6,2188.4 5466.4,3402.5 5328.5,3325.5 2877.5,7652.0 -0.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0022/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.04734244956407,46.59055511951754]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.04303248355056,46.590539577959795]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.04305911649868,46.58700196469174]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.04736908251219,46.58701750624948]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p23","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0023/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0023/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7652.0 -0.0,796.6 151.3,798.8 162.8,129.1 1462.7,145.5 1448.8,817.9 3706.8,851.0 3727.4,186.5 6027.9,179.3 6009.8,886.7 6452.0,895.5 6452.0,7652.0 -0.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0023/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.04563950561071,46.59453722200081]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.04554289846088,46.59160964304568]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.05056010518872,46.591530353287126]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.05065671233855,46.59445793224226]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0024/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p24","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0024/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0024/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2565.4,7652.0 -0.0,7652.0 -0.0,7451.4 372.1,7449.9 386.4,171.7 1382.3,166.6 1381.6,-0.0 5110.1,-0.0 5110.1,196.1 6144.5,183.3 6097.9,7652.0 3854.5,7652.0 3858.6,6983.9 2567.2,6986.6 2565.4,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0024/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.04112305533893,46.59566085748975]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.0410883206427,46.592713207027586]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.04614009531448,46.59268469968584]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.04617483001071,46.595632350148]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0025/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p25","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0025/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0025/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7652.0 -0.0,0.0 6452.0,-0.0 6452.0,418.3 5461.1,411.3 5416.8,7652.0 -0.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0025/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.04100603563857,46.597993670745474]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.04095325115824,46.59503104519856]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.04603090793535,46.59498772595369]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.04608369241568,46.59795035150061]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0027/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p27","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0027/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0027/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,7652.0 -0.0,7652.0 -0.0,-0.0 6452.0,0.0 6452.0,953.0 6196.4,958.2 6187.7,513.7 6186.2,435.8 4888.9,506.8 4942.9,2400.4 2400.6,2431.4 2440.3,5674.1 4335.4,5640.6 4679.0,5760.6 4893.7,5951.7 4861.4,5905.8 5076.1,5903.2 5020.4,5713.6 5277.8,5594.9 6125.6,5175.3 6142.2,6613.6 6452.0,6607.6 6452.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0027/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.02780265830852,46.60392289065524]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.01837862270504,46.6038807168235]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.01845090940863,46.596147097976015]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.0278749450121,46.59618927180776]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0028__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p28 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0028__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0028/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,4148.4 5570.7,4156.1 5513.3,0.0 -0.0,-0.0 -0.0,7081.5 3602.2,7061.6 3655.6,3539.6 4997.2,3546.4 4999.2,4218.0 6452.0,4232.8 6452.0,4148.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0028__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1468.0,3156.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.0233182,46.5999931]}},{"type":"Feature","properties":{"resourceCoords":[5560.0,3156.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.0205618,46.600004]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0028__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p28 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"3593.2"},{"label":"split_canvas_y","value":"3539.6"},{"label":"split_canvas_w","value":"2858.8"},{"label":"split_canvas_h","value":"4112.4"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0028__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0028/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4911.5,7382.2 5390.1,7383.0 6452.0,7387.5 6443.2,4232.7 4999.2,4218.0 4997.2,3546.4 3679.5,3539.7 3705.0,7652.0 4909.0,7652.0 4911.5,7382.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0028__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[3593.2,3539.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.02078416457009,46.60337759066784]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,3539.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.01689052485895,46.60341621005526]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.01680937587207,46.59957828307972]}},{"type":"Feature","properties":{"resourceCoords":[3593.2,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.02070301558321,46.599539663692305]}},{"type":"Feature","properties":{"resourceCoords":[3705.2,7380.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.0205559,46.5997948]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0029/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p29","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0029/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0029/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1981.1 3123.0,1962.9 3098.7,0.0 6452.0,0.0 6452.0,1971.2 5958.1,1872.1 5966.1,3227.3 5510.1,3229.8 5515.1,4323.0 5963.7,4320.1 5989.7,7562.8 -0.0,7596.3 -0.0,1981.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0029/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.01891958624516,46.600730252939314]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.01458457769644,46.6007455365426]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.01455838186838,46.59718803752684]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.0188933904171,46.59717275392356]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0003/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0003/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6210.4,3742.0 6377.8,3841.0 6253.7,3827.7 6207.8,4397.8 6196.5,7234.0 -0.0,7235.1 -0.0,0.0 3976.4,-0.0 3611.0,965.7 6218.5,1706.6 6210.4,3742.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0003/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.03640274823763,46.59335280125434]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.03636758989347,46.59037683259556]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.04146767843827,46.590347976321404]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.04150283678243,46.593323944980185]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0030/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p30","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0030/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0030/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,6112.8 458.1,6111.8 447.0,2880.0 -0.0,2880.8 -0.0,1791.3 454.5,1790.8 452.8,440.2 6017.8,1570.4 5994.3,7652.0 -0.0,7652.0 -0.0,6112.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0030/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.0152181162122,46.600077309730466]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.0108685789576,46.6001065365444]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.01081848529503,46.59653707301397]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.01516802254963,46.59650784620003]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0031/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p31","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0031/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0031/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,-0.0 6061.6,64.8 6056.0,7448.0 1624.8,7449.5 1577.6,7652.0 -0.0,7652.0 -0.0,-0.0 6452.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0031/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[6036.0,4716.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.009241,46.5972878]}},{"type":"Feature","properties":{"resourceCoords":[2868.0,7444.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.011141,46.598782]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0032/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p32","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0032/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0032/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,7652.0 1884.9,7652.0 1881.6,7375.6 336.0,7380.0 272.5,-0.0 6452.0,-0.0 6452.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0032/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4596.0,4604.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.0092159,46.5952434]}},{"type":"Feature","properties":{"resourceCoords":[336.0,7380.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.0111278,46.5972689]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0033__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p33 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0033__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0033/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"428.0,5060.0 428.5,7131.4 435.4,7131.4 437.3,7652.0 892.0,7652.0 2044.0,7652.0 6452.0,7652.0 6452.0,1756.0 4283.6,1747.2 4281.2,0.0 0.0,-0.0 -0.0,5060.2 428.0,5060.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0033__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5956.0,5060.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.013087,46.602968]}},{"type":"Feature","properties":{"resourceCoords":[428.0,5060.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.016893,46.602932]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0004/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0004/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2814.6,7652.0 2818.6,6956.8 559.0,7008.8 559.4,275.4 5723.3,259.9 5826.1,7652.0 2814.6,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0004/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.04102828943614,46.59311182012814]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.04101556982025,46.590131117688166]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.04612375049689,46.590120677998826]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.04613647011278,46.593101380438796]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0005/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0005/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,1984.3 6452.0,7540.1 5596.6,7565.0 2480.5,6499.4 2485.4,6327.6 495.8,6530.8 -0.0,0.0 2789.8,73.9 1509.8,1810.8 3173.3,1710.1 6452.0,1984.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0005/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.03891984957666,46.59045386526606]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.03922987760956,46.58748595361753]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.04431590207822,46.5877404225062]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.04400587404533,46.59070833415473]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0006/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0006/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1088.6,7168.9 -0.0,4780.3 3.7,4585.5 -0.0,4576.8 1739.5,3567.8 1055.8,970.8 2063.6,795.2 2543.0,906.6 2150.0,0.0 6113.3,0.0 6066.5,7120.6 2158.6,7358.0 1088.6,7168.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0006/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.03731299880775,46.59232136146023]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.0335592072731,46.590812800158865]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.0361444389328,46.58773177778039]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.03989823046744,46.589240339081755]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0007/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0007/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"56.7,7380.8 112.3,0.0 6452.0,0.0 6452.0,573.1 4894.2,1471.1 5520.6,2592.0 6452.0,2082.5 6423.7,7196.7 5854.8,7361.4 56.7,7380.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0007/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.0337158052007,46.59103990202068]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.02993832513415,46.58952343111936]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.0325370377112,46.58642287769022]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.03631451777774,46.58793934859154]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p8","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"16"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0008/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0008/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"724.7,480.9 5546.8,388.0 5566.8,6186.5 5732.0,6754.4 1022.0,6844.6 717.2,7021.9 595.2,6849.8 700.2,6849.5 724.7,480.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2372.0,4712.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.0347438,46.5857423]}},{"type":"Feature","properties":{"resourceCoords":[4000.0,420.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-112.0366988,46.5874069]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Helena, Montana | 1890 | sanborn05017_003 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T13:51:39Z","modified":"2026-09-22T13:51:39Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0009/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0009/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"621.8,2149.8 326.4,2143.3 1336.4,2018.1 3743.4,1199.7 5853.0,234.6 5164.6,3346.8 5234.2,7227.4 443.7,7087.7 621.8,2149.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd425m:g4254m:g4254hm:g4254hm_g050171890:05017_1890-0009/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.04218295438477,46.58743664432699]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.04014808839071,46.590119905084386]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.03554995926164,46.588449665642464]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-112.0375848252557,46.58576640488507]}}]}}]}