{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn08204_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Belle Fourche, South-Dakota | 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":"13"},{"label":"placed","value":"7"},{"label":"unplaced","value":"6"},{"label":"fit sources","value":"georef 4, georef-snap 3"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"5 sheet(s) cut into 10 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 44.67084,-103.85124 +/-563m); p1__2 (tier 4, 44.67084,-103.85124 +/-563m); p4__1 (tier 1, 44.67024,-103.85444 +/-101m); p5__1 (tier 1, 44.66283,-103.85452 +/-100m); p8__1 (tier 2, 44.67244,-103.85170 +/-100m); p8__2 (tier 2, 44.67244,-103.85170 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082041923:08204_1923-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Belle Fourche, South-Dakota | 1923 | sanborn08204_004 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T22:05:34Z","modified":"2026-09-23T22:05:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082041923:08204_1923-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082041923:08204_1923-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1070.5,1643.9 621.2,1668.3 635.5,1927.0 -0.0,1927.0 -0.0,-0.0 1628.0,0.0 1628.0,1613.6 1580.1,1616.2 1578.7,1927.0 1070.5,1643.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082041923:08204_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":[-103.85918738707623,44.67550861036307]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-103.85497974801909,44.67551123883298]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-103.85497540359532,44.67194456056695]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-103.85918304265246,44.671941932097035]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082041923:08204_1923-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Belle Fourche, South-Dakota | 1923 | sanborn08204_004 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T22:05:34Z","modified":"2026-09-23T22:05:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082041923:08204_1923-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082041923:08204_1923-0003","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1597.3,1256.9 1617.9,113.4 1628.0,113.4 1628.0,1927.0 1235.6,1927.0 1236.0,1834.2 448.6,1827.3 450.0,1255.1 1597.3,1256.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082041923:08204_1923-0003/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-103.85389009388092,44.669557846945395]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-103.85391923302018,44.672530262317274]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-103.8490064328995,44.67255496315887]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-103.84897729376024,44.669582547786995]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082041923:08204_1923-0004__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Belle Fourche, South-Dakota | 1923 | sanborn08204_004 p4 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"6"},{"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":"2026-09-23T22:05:34Z","modified":"2026-09-23T22:05:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082041923:08204_1923-0004__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082041923:08204_1923-0004","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"961.0,340.9 459.8,0.0 0.0,-0.0 0.0,1276.3 620.2,1271.3 747.1,1442.9 746.7,1927.0 991.0,1927.0 1221.0,1927.0 1462.8,1927.0 1563.0,0.0 981.2,0.0 961.0,340.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082041923:08204_1923-0004__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[961.0,341.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-103.855103,44.6719062]}},{"type":"Feature","properties":{"resourceCoords":[1530.0,635.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-103.8536245,44.6714357]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082041923:08204_1923-0005__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Belle Fourche, South-Dakota | 1923 | sanborn08204_004 p5 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"11"},{"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":"2026-09-23T22:05:34Z","modified":"2026-09-23T22:05:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082041923:08204_1923-0005__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082041923:08204_1923-0005","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,1451.0 0.0,1453.5 0.0,1505.2 310.7,1505.0 311.5,1815.8 1628.0,1817.0 1628.0,93.5 1178.4,93.5 1178.5,667.5 17.9,668.5 -0.0,1224.7 0.0,1451.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082041923:08204_1923-0005__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[597.0,668.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-103.8507064,44.6714451]}},{"type":"Feature","properties":{"resourceCoords":[597.0,1816.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-103.8536245,44.6714357]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082041923:08204_1923-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Belle Fourche, South-Dakota | 1923 | sanborn08204_004 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T22:05:34Z","modified":"2026-09-23T22:05:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082041923:08204_1923-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082041923:08204_1923-0006","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"112.6,1893.5 99.8,177.3 600.3,172.8 599.5,-0.0 1628.0,-0.0 1628.0,1885.3 112.6,1893.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082041923:08204_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":[-103.84878085853919,44.66977042766932]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-103.84879301272892,44.666794145192355]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-103.85371185536498,44.666804448860404]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-103.85369970117524,44.66978073133737]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082041923:08204_1923-0007__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Belle Fourche, South-Dakota | 1923 | sanborn08204_004 p7 [1]","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":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-09-23T22:05:34Z","modified":"2026-09-23T22:05:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082041923:08204_1923-0007__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082041923:08204_1923-0007","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"242.0,1927.0 463.0,1927.0 791.4,1927.0 783.9,820.3 1581.8,817.0 1590.9,242.2 1501.2,242.0 1502.1,54.5 1628.0,55.2 1628.0,0.0 -0.0,-0.0 -0.0,1927.0 242.0,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082041923:08204_1923-0007__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[982.0,241.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-103.846964,44.6714458]}},{"type":"Feature","properties":{"resourceCoords":[-1898.0,241.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-103.8536245,44.6714357]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082041923:08204_1923-0007__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Belle Fourche, South-Dakota | 1923 | sanborn08204_004 p7 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"3135.6"},{"label":"split_canvas_y","value":"3267.2"},{"label":"split_canvas_w","value":"3376.4"},{"label":"split_canvas_h","value":"4440.8"}],"created":"2026-09-23T22:05:34Z","modified":"2026-09-23T22:05:34Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082041923:08204_1923-0007__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082041923:08204_1923-0007","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1628.0,1927.0 1628.0,816.8 783.9,820.3 785.0,985.9 864.8,985.7 854.7,1927.0 1628.0,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184bm:g082041923:08204_1923-0007__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[783.9,816.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-103.84576217388378,44.67175378567586]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,816.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-103.84359804021965,44.67174925658478]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-103.84360642606997,44.66972873856282]}},{"type":"Feature","properties":{"resourceCoords":[783.9,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-103.8457705597341,44.669733267653896]}},{"type":"Feature","properties":{"resourceCoords":[864.8,985.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-103.845556,44.671446]}}]}}]}