{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn04052_007.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Iron Mountain, Michigan | 1923 | mapsnap generated fit (2026-09-23)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-23"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"33"},{"label":"placed","value":"20"},{"label":"unplaced","value":"13"},{"label":"fit sources","value":"georef-snap 9, georef 9, georef-street 2"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"5 sheet(s) cut into 16 panels"},{"label":"unplaced pages","value":"p1 (tier 3, 45.82220,-88.05455 +/-610m); p12__1 (tier 1, 45.82971,-88.06146 +/-143m); p12__2 (tier 1, 45.83123,-88.06239 +/-186m); p12__4 (tier 2, 45.82854,-88.06066 +/-140m); p15__1 (tier 2, 45.82658,-88.06048 +/-147m); p15__3 (tier 1, 45.82598,-88.05954 +/-171m); p16__1 (tier 1, 45.82435,-88.07016 +/-197m); p16__2 (tier 1, 45.82499,-88.06844 +/-100m); p16__3 (tier 1, 45.82460,-88.05657 +/-130m); p17__1 (tier 3, 45.82792,-88.06356 +/-610m); p17__2 (tier 1, 45.82862,-88.06355 +/-100m); p17__3 (tier 1, 45.82828,-88.06265 +/-100m); p22 (tier 4, 45.82092,-88.06398 +/-1338m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Iron Mountain, Michigan | 1923 | sanborn04052_007 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T09:51:48Z","modified":"2026-09-23T09:51:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0010/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0010/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"368.4,7708.0 332.0,3090.9 2482.2,3083.4 2474.0,1039.4 3725.0,1048.6 3710.3,0.0 6512.0,0.0 6512.0,7708.0 368.4,7708.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0010/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.06104055891826,45.817945598327405]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.05681776715909,45.81789127111827]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,7708.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.05690938458258,45.81438299623142]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7708.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.06113217634176,45.81443732344056]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Iron Mountain, Michigan | 1923 | sanborn04052_007 p11","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"23"}],"created":"2026-09-23T09:51:48Z","modified":"2026-09-23T09:51:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0011/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0011/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"89.9,7346.1 89.4,7128.6 -0.0,7128.1 0.0,-0.0 6512.0,0.0 6512.0,5980.5 6365.9,5977.7 6398.6,7351.2 89.9,7346.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2152.0,4092.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.075006,45.8238042]}},{"type":"Feature","properties":{"resourceCoords":[4212.0,4092.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.0736016,45.823795]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0012__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Iron Mountain, Michigan | 1923 | sanborn04052_007 p12 [3]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"2049.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4462.8"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-09-23T09:51:48Z","modified":"2026-09-23T09:51:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0012__3/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0012/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3454.9,7485.8 6221.5,7488.3 6215.0,4948.4 6512.0,4955.0 6512.0,2053.5 4858.4,2083.8 4846.6,0.0 4456.4,0.0 2488.4,6154.0 2049.2,6150.0 2064.4,7708.0 2260.0,7708.0 2914.9,7708.0 3219.3,7288.4 3454.9,7485.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0012__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4236.6,2096.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.0613269,45.8299617]}},{"type":"Feature","properties":{"resourceCoords":[4236.6,7516.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.061329,45.827506]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Iron Mountain, Michigan | 1923 | sanborn04052_007 p13","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T09:51:48Z","modified":"2026-09-23T09:51:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0013/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0013/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6512.0,240.3 6512.0,7708.0 -0.0,7708.0 -0.0,6831.4 379.6,6841.2 698.0,0.0 6512.0,240.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0013/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.06049359598885,45.82864894728165]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.0562726214328,45.828716560285905]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,7708.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.05615857595934,45.825210498676256]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7708.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.06037955051539,45.825142885672]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0014__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Iron Mountain, Michigan | 1923 | sanborn04052_007 p14 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-09-23T09:51:48Z","modified":"2026-09-23T09:51:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0014__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0014/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2696.0,7708.0 2839.2,7708.0 3891.6,3784.4 4937.2,3789.6 6512.0,3796.8 6512.0,0.0 0.0,-0.0 -0.0,2587.0 578.5,2593.3 626.0,7708.0 2696.0,7708.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0014__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1204.0,2600.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.055864,45.828608]}},{"type":"Feature","properties":{"resourceCoords":[6172.0,2600.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.052647,45.828638]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0014__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Iron Mountain, Michigan | 1923 | sanborn04052_007 p14 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"2839.2"},{"label":"split_canvas_y","value":"3784.4"},{"label":"split_canvas_w","value":"3672.8"},{"label":"split_canvas_h","value":"3923.6"}],"created":"2026-09-23T09:51:48Z","modified":"2026-09-23T09:51:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0014__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0014/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4080.6,7708.0 6512.0,7708.0 6512.0,4122.3 6389.1,3796.2 4937.2,3789.6 4007.6,3785.0 3886.9,3941.0 3879.8,3828.5 3047.0,6933.2 3251.7,7332.0 4080.6,7708.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0014__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[2839.2,3784.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.06490968048749,45.82532913444802]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,3784.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.06014750448185,45.825052137343576]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,7708.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.06057254267402,45.821515750973816]}},{"type":"Feature","properties":{"resourceCoords":[2839.2,7708.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.06533471867967,45.82179274807826]}},{"type":"Feature","properties":{"resourceCoords":[3250.8,7332.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.0647592,45.8221005]}},{"type":"Feature","properties":{"resourceCoords":[3250.8,7332.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.0647592,45.8221005]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0015__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Iron Mountain, Michigan | 1923 | sanborn04052_007 p15 [2]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"},{"label":"split_canvas_x","value":"847.6"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"5664.4"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-09-23T09:51:48Z","modified":"2026-09-23T09:51:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0015__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0015/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5827.9,5955.1 6038.5,6640.8 5970.8,7708.0 6512.0,7708.0 6512.0,5744.9 5722.1,5779.0 5684.6,4904.0 6061.2,4897.5 6139.2,553.7 3387.4,605.2 3149.2,413.4 2854.6,836.8 1993.6,853.7 1990.1,677.0 847.6,4233.6 3176.8,4170.0 4408.7,5865.4 5827.9,5955.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0015__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4165.5,3348.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.061365,45.826264]}},{"type":"Feature","properties":{"resourceCoords":[4165.5,620.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.061329,45.827506]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0016__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Iron Mountain, Michigan | 1923 | sanborn04052_007 p16 [4]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"3626.0"},{"label":"split_canvas_y","value":"5104.0"},{"label":"split_canvas_w","value":"2886.0"},{"label":"split_canvas_h","value":"2604.0"}],"created":"2026-09-23T09:51:48Z","modified":"2026-09-23T09:51:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0016__4/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0016/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5972.4,7395.4 6512.0,7159.7 6512.0,5112.4 3627.6,5104.0 3626.2,7394.2 5972.4,7395.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0016__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4281.5,5448.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.060844,45.8202258]}},{"type":"Feature","properties":{"resourceCoords":[4281.5,7412.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.060844,45.819305]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Iron Mountain, Michigan | 1923 | sanborn04052_007 p18","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T09:51:48Z","modified":"2026-09-23T09:51:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0018/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0018/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"828.6,7362.6 836.9,5905.0 720.9,5905.5 -0.0,5915.5 -0.0,0.0 6512.0,0.0 6512.0,6120.1 3310.3,6146.4 3321.2,7440.8 828.6,7362.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0018/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.0609611502189,45.83530218968899]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.05259111110651,45.83533204333283]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,7708.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.05254075138271,45.8283802616729]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7708.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.0609107904951,45.82835040802905]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Iron Mountain, Michigan | 1923 | sanborn04052_007 p19","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T09:51:48Z","modified":"2026-09-23T09:51:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0019/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0019/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 2939.4,0.0 2940.2,114.3 6277.9,100.6 6266.0,7708.0 -0.0,7708.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0019/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.08021907709083,45.82240860415436]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.07182834505416,45.8223247254949]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,7708.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.07196980606224,45.81535414073584]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7708.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.08036053809892,45.8154380193953]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Iron Mountain, Michigan | 1923 | sanborn04052_007 p2","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"1"}],"created":"2026-09-23T09:51:48Z","modified":"2026-09-23T09:51:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0002/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0002/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6118.1,7460.6 248.0,7508.0 72.4,0.0 6072.1,0.0 6118.1,7460.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.07219229842393,45.82289040324913]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.06796123998818,45.82280608979586]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,7708.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.06810469754224,45.81932209813281]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7708.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.07233575597799,45.81940641158608]}},{"type":"Feature","properties":{"resourceCoords":[248.0,7508.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.0721709,45.8194936]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Iron Mountain, Michigan | 1923 | sanborn04052_007 p20","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T09:51:48Z","modified":"2026-09-23T09:51:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0020/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0020/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6111.5,7708.0 -0.0,7708.0 -0.0,1729.8 291.5,1726.4 287.8,604.0 3250.2,610.9 3250.2,605.4 5946.3,583.5 5991.4,3434.7 6352.0,3421.4 6446.8,5925.4 6123.3,5939.0 6111.5,7708.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0020/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.07260285858452,45.816917920404535]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.06425283140801,45.81676530933903]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,7708.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.0645101854985,45.809827897674744]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7708.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.07286021267501,45.809980508740246]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0021/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Iron Mountain, Michigan | 1923 | sanborn04052_007 p21","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T09:51:48Z","modified":"2026-09-23T09:51:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0021/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0021/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"316.7,3247.2 207.6,795.6 1331.0,768.4 1834.1,1081.6 1979.5,1079.9 2618.6,612.5 2997.1,598.0 2990.0,0.0 6512.0,0.0 6512.0,7708.0 -0.0,7708.0 -0.0,3262.5 316.7,3247.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0021/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.06480998123887,45.814427004348765]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.05628555020851,45.814231443437514]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,7708.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.05661531961925,45.80714885977026]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7708.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.0651397506496,45.80734442068151]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Iron Mountain, Michigan | 1923 | sanborn04052_007 p3","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"15"}],"created":"2026-09-23T09:51:48Z","modified":"2026-09-23T09:51:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0003/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0003/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"740.8,7623.2 691.3,228.2 -0.0,228.0 -0.0,0.0 6512.0,0.0 5036.3,5601.5 4790.7,7619.3 740.8,7623.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2964.0,5636.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.0668645,45.8203165]}},{"type":"Feature","properties":{"resourceCoords":[6068.0,1636.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.0647592,45.8221005]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Iron Mountain, Michigan | 1923 | sanborn04052_007 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T09:51:48Z","modified":"2026-09-23T09:51:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0004/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0004/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"542.5,4842.0 1631.3,875.2 3241.5,895.4 3239.0,1729.1 6512.0,1946.2 6512.0,6907.8 270.9,6863.7 542.5,4842.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0004/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.06580626332884,45.82251090515508]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.06158808289713,45.822460813795935]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,7708.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.06167256457402,45.81895668491625]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7708.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.06589074500573,45.819006776275394]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Iron Mountain, Michigan | 1923 | sanborn04052_007 p5","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"}],"created":"2026-09-23T09:51:48Z","modified":"2026-09-23T09:51:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0005/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0005/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"408.1,7708.0 338.0,794.0 6208.1,746.6 6254.0,7708.0 408.1,7708.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0005/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.072375732063,45.819856861713454]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.06814467362724,45.81977254826018]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,7708.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.0682881311813,45.81628855659713]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7708.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.07251918961705,45.8163728700504]}},{"type":"Feature","properties":{"resourceCoords":[336.0,792.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.0721709,45.8194936]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Iron Mountain, Michigan | 1923 | sanborn04052_007 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T09:51:48Z","modified":"2026-09-23T09:51:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0006/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0006/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"655.1,7708.0 685.2,734.4 3929.5,764.4 3951.8,7708.0 655.1,7708.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0006/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.06878746968563,45.81977547275823]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.06460663580546,45.819722912959016]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,7708.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.0646952763111,45.81624963921983]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7708.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.06887611019127,45.81630219901905]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Iron Mountain, Michigan | 1923 | sanborn04052_007 p7","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"0"}],"created":"2026-09-23T09:51:48Z","modified":"2026-09-23T09:51:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0007/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0007/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2012.0,6902.2 2343.0,7708.0 -0.0,7706.4 -0.0,794.1 5320.6,845.1 5341.8,2893.0 5658.5,2892.5 5699.5,6964.4 2012.0,6902.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0007/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.0662659,45.8197588]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.0620362,45.8197157]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,7708.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.06210929999999,45.8162265]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7708.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.066339,45.8162696]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Iron Mountain, Michigan | 1923 | sanborn04052_007 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T09:51:48Z","modified":"2026-09-23T09:51:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0008/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0008/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5231.1,6995.5 318.2,6912.4 319.5,2832.1 -0.0,2829.3 -0.0,777.3 1793.2,815.2 1803.6,0.0 2377.7,0.0 2381.2,828.5 3066.9,844.0 4835.2,819.2 6512.0,15.3 6512.0,4963.3 5251.9,4936.2 5231.1,6995.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0008/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.06281594987301,45.81969220971523]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.0586239124603,45.819679725061704]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,7708.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.05864496744343,45.816197142869164]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7708.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.06283700485614,45.81620962752269]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Iron Mountain, Michigan | 1923 | sanborn04052_007 p9","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"0"}],"created":"2026-09-23T09:51:48Z","modified":"2026-09-23T09:51:48Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0009/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0009/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4373.5,7696.9 3927.6,7708.0 2965.1,7071.6 -0.0,7090.3 -0.0,1444.3 279.2,1446.6 -0.0,928.0 -0.0,644.5 6332.1,758.8 6331.2,5381.0 6512.0,5382.5 6512.0,5598.6 6329.1,5594.4 6316.4,6803.5 5556.1,6815.3 4373.5,7696.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd411m:g4114m:g4114im:g040521923:04052_1923-0009/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.0649881,45.8169102]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.0607396,45.8168802]}},{"type":"Feature","properties":{"resourceCoords":[6512.0,7708.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.06079070000001,45.8133753]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7708.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.0650392,45.8134053]}}]}}]}