{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn09209_008.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Kelso, Washington | 1949 | mapsnap generated fit (2026-10-19)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-19"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"37"},{"label":"placed","value":"28"},{"label":"unplaced","value":"9"},{"label":"fit sources","value":"georef 17, georef-snap 10, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"8 sheet(s) cut into 16 panels"},{"label":"unplaced pages","value":"p18__1 (tier 2, 46.13343,-122.91303 +/-174m); p1a__1 (tier 1, 46.13358,-122.92298 +/-256m); p1a__2 (tier 1, 46.13412,-122.92146 +/-100m); p1b__1 (tier 1, 46.15289,-122.90702 +/-268m); p1b__2 (tier 1, 46.15335,-122.90777 +/-100m); p20__2 (tier 1, 46.15056,-122.91942 +/-100m); p25 (tier 1, 46.13441,-122.89629 +/-509m); p26__2 (tier 1, 46.13105,-122.91360 +/-100m); p4__2 (tier 1, 46.15367,-122.90817 +/-207m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p10","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T13:39:03Z","modified":"2026-10-19T13:39:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"498.5,1740.7 505.4,1756.4 148.8,1763.4 63.2,1509.3 34.4,918.8 92.5,240.5 249.0,205.5 351.9,191.4 531.5,183.7 800.1,182.2 1579.2,171.5 1588.1,564.2 1592.0,947.0 1590.3,1155.0 1593.1,1280.0 1580.5,1386.4 1590.0,1562.5 1612.0,1598.8 1612.0,1884.0 1597.3,1886.8 1596.9,1801.1 1591.5,1711.5 1544.2,1707.2 832.0,1714.0 831.9,1717.0 498.1,1739.9 498.5,1740.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[832.0,1714.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.911535,46.1442769]}},{"type":"Feature","properties":{"resourceCoords":[1205.0,952.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9100394,46.1454741]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T13:39:03Z","modified":"2026-10-19T13:39:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"212.3,24.9 387.9,16.8 493.8,30.1 618.4,28.4 825.6,31.6 1207.2,30.8 1598.7,25.0 1600.8,395.1 1593.3,1156.2 1610.5,1523.8 1612.0,1887.0 1593.3,1891.2 1558.7,1886.3 1075.5,1893.8 1074.0,1870.3 440.5,1848.5 439.1,1820.3 140.8,1823.8 56.7,1824.8 47.0,427.1 61.1,419.4 72.5,314.5 78.9,162.8 77.7,46.7 174.4,47.4 212.3,24.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1208.0,776.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.90682292544989,46.14564699568202]}},{"type":"Feature","properties":{"resourceCoords":[1208.0,1550.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.90479614022266,46.14528788830342]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p12","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T13:39:03Z","modified":"2026-10-19T13:39:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"423.2,204.3 416.5,188.5 416.2,187.7 750.6,170.7 750.8,167.7 1463.5,173.6 1510.8,178.8 1514.6,268.5 1510.8,553.2 1500.4,1324.5 1501.5,1705.0 733.4,1702.5 482.6,1698.8 438.9,1912.0 433.9,1912.0 429.3,1912.0 430.9,1828.5 299.6,1778.8 125.2,1553.4 52.8,1258.3 83.7,260.2 66.2,205.0 423.2,204.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[744.0,1313.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9122866,46.1422056]}},{"type":"Feature","properties":{"resourceCoords":[744.0,552.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9117989,46.1435839]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p13","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T13:39:03Z","modified":"2026-10-19T13:39:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"501.6,1884.3 500.1,1780.5 553.6,1781.4 573.1,1848.5 1065.7,1857.6 1508.5,1856.3 1566.2,1856.2 1568.0,446.2 1582.4,438.6 1594.7,332.9 1602.4,179.9 1602.2,105.8 1602.2,61.9 1414.6,58.9 1412.0,44.1 1212.2,41.8 437.4,32.6 55.3,34.3 56.2,414.6 42.2,414.6 41.4,776.0 12.3,777.2 15.1,1278.0 1.0,1281.2 1.0,1387.7 15.7,1390.0 18.4,1879.2 55.0,1892.1 501.6,1884.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[449.0,426.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.90928588587825,46.14169451862482]}},{"type":"Feature","properties":{"resourceCoords":[1214.0,426.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9087943496481,46.143073432482865]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p14","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T13:39:03Z","modified":"2026-10-19T13:39:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"62.1,320.2 72.2,228.1 114.2,12.3 364.2,13.7 1129.8,8.9 1507.1,5.1 1511.5,452.1 1506.3,893.0 1510.6,1330.2 1510.3,1821.0 1510.2,1891.5 1129.7,1866.2 1129.8,1857.1 754.3,1877.6 754.2,1871.8 379.4,1871.2 379.4,1865.3 53.6,1865.0 46.4,1817.8 62.1,320.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1520.0,450.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.90983130656197,46.14017907473662]}},{"type":"Feature","properties":{"resourceCoords":[63.0,890.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.91393718365056,46.14005540739106]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p15","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T13:39:03Z","modified":"2026-10-19T13:39:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"810.0,1825.2 809.8,1862.0 1177.6,1878.1 1177.8,1842.0 1519.9,1845.4 1551.8,1548.4 1562.1,1545.8 1607.3,874.0 1586.1,858.5 1598.0,87.5 1521.8,20.4 1031.2,24.2 1028.8,39.9 922.4,40.1 918.9,25.1 416.7,28.9 415.6,1.0 53.1,1.0 53.5,435.0 44.4,877.7 44.9,1316.8 40.2,1809.7 39.2,1912.0 57.5,1912.0 91.7,1912.0 235.1,1874.0 421.9,1824.5 810.0,1825.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0015/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.90971454093017,46.14099010199029]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.90553252982015,46.14026747217836]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.9067607293953,46.13680653816527]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.91094274050532,46.1375291679772]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p16","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T13:39:03Z","modified":"2026-10-19T13:39:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"28.6,1848.4 82.5,1707.5 24.4,861.8 92.5,335.6 37.1,117.8 105.3,33.0 113.0,47.5 440.6,48.0 440.6,53.9 817.7,54.8 817.7,60.6 1195.4,40.1 1195.3,49.3 1578.0,75.0 1578.0,120.6 1586.7,797.1 1583.7,1302.3 1588.0,1467.5 1586.4,1876.4 1197.6,1881.8 1197.5,1845.3 818.7,1829.9 818.7,1836.2 440.4,1836.5 440.2,1821.6 71.4,1855.7 28.6,1848.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0016/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1196.0,794.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9122894,46.1364494]}},{"type":"Feature","properties":{"resourceCoords":[1196.0,1474.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9127397,46.1352235]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p17","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T13:39:03Z","modified":"2026-10-19T13:39:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0017","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"46.0,1454.0 43.3,1846.2 426.4,1797.6 426.1,1817.9 811.4,1819.5 811.4,1809.4 1612.0,1829.3 1612.0,1659.8 1606.4,1446.3 1578.8,1446.9 1596.2,781.0 1587.9,780.9 1569.1,406.3 1571.7,406.3 1482.8,18.6 1176.3,16.1 1176.3,52.4 809.0,36.9 808.9,1.0 417.7,1.0 235.2,50.2 39.8,102.8 46.6,781.5 42.1,1288.2 46.0,1454.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[805.0,778.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9093045,46.1359277]}},{"type":"Feature","properties":{"resourceCoords":[46.0,1454.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9117156,46.1350553]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0018__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p18 [2]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.99"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"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":"2026-10-19T13:39:03Z","modified":"2026-10-19T13:39:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0018__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0018","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"43.9,130.7 71.9,135.7 150.1,700.4 256.0,1008.0 164.8,1038.0 140.5,1309.5 369.1,1313.9 488.4,1428.7 556.6,1798.7 743.8,1881.5 1567.7,1895.2 1577.6,1114.1 1579.0,432.0 1582.2,164.3 1187.4,166.5 1187.5,129.4 803.0,110.7 803.0,117.1 418.8,114.2 418.8,99.1 43.9,130.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0018__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1188.0,1114.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.913602,46.1328019]}},{"type":"Feature","properties":{"resourceCoords":[1579.0,432.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9121679,46.1338441]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p19","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T13:39:03Z","modified":"2026-10-19T13:39:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0019/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0019","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"32.7,1095.9 30.8,423.4 32.9,141.5 415.2,93.2 414.9,113.5 799.5,115.3 799.4,105.2 1587.6,125.2 1587.0,159.0 1599.2,162.4 1599.5,406.7 1593.0,434.0 1587.0,436.0 1587.0,461.0 1599.0,463.0 1599.1,465.1 1596.2,718.8 1588.0,720.0 1589.0,859.0 1592.5,859.5 1594.5,922.6 1592.8,922.6 1549.7,1884.0 26.7,1866.0 32.7,1095.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0019/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1579.0,434.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.90814844320347,46.13312470049945]}},{"type":"Feature","properties":{"resourceCoords":[1184.0,1807.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9100719772433,46.130828842407944]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0020__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p20 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"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":"2026-10-19T13:39:03Z","modified":"2026-10-19T13:39:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0020__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0020","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1172.2,1806.2 1221.2,1818.1 1245.4,1707.0 1404.4,1700.2 1458.5,1479.8 1441.2,1480.3 1541.1,460.7 1566.8,466.1 1551.9,80.9 1042.5,32.8 645.4,70.7 595.0,666.8 595.0,696.1 592.5,696.1 592.4,698.1 122.4,774.4 116.4,840.9 24.1,842.8 140.4,1083.8 138.8,1083.9 23.9,1503.0 720.1,1671.5 756.6,1670.5 933.4,1719.6 1051.7,1696.4 1132.6,1712.2 1119.0,1776.8 1172.2,1806.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0020__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1030.0,101.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.91997522934075,46.15021671176836]}},{"type":"Feature","properties":{"resourceCoords":[90.0,1502.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.92253759525222,46.14768842233252]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0021__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p21 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.42"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2029.6"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"5622.4"}],"created":"2026-10-19T13:39:03Z","modified":"2026-10-19T13:39:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0021__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0021","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"648.3,1875.4 1005.1,1892.1 1380.6,1901.2 1381.0,1886.9 1595.0,1902.0 1595.0,1884.0 1610.8,1883.1 1612.0,1881.7 1612.0,1880.4 1558.3,1874.2 1565.5,1478.8 1505.3,1442.4 1494.2,971.3 1439.0,955.5 1454.8,565.3 1046.3,576.6 887.6,527.5 407.8,577.9 313.2,520.5 309.4,564.1 278.5,584.7 231.6,547.5 254.4,520.2 56.8,553.4 48.5,521.3 23.0,521.5 138.6,1500.1 154.8,1496.0 149.1,1714.3 1.0,1753.4 1.0,1863.0 47.9,1855.5 276.1,1863.0 648.3,1875.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0021__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,507.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.91869674888643,46.149574791104534]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,507.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.91441931640847,46.14885324159974]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.91532079624916,46.14625191319643]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-122.91959822872712,46.146973462701226]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0021__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p21 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.19"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"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":"2086.8"}],"created":"2026-10-19T13:39:03Z","modified":"2026-10-19T13:39:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0021__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0021","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"27.2,461.8 51.2,482.3 65.9,495.2 535.9,496.6 910.0,479.7 1328.0,479.7 1328.4,481.1 1522.4,312.0 1473.0,146.0 1510.5,97.9 1429.9,25.8 677.1,79.6 68.0,194.0 36.8,461.9 27.2,461.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0021__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[910.0,479.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9227124,46.1476892]}},{"type":"Feature","properties":{"resourceCoords":[1328.0,479.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9223851,46.148452]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0022/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p22","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T13:39:03Z","modified":"2026-10-19T13:39:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0022/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0022","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1601.3,1870.0 1595.8,1430.8 1584.5,1030.4 1503.0,1030.2 1503.2,972.2 1582.4,972.2 1584.7,971.9 1588.3,545.2 1585.9,545.2 1583.7,68.1 1350.5,68.9 1302.6,78.4 1252.2,79.2 1194.0,64.3 1191.0,1.0 1171.7,1.0 1109.5,4.2 1002.0,55.7 820.6,52.7 786.0,62.8 77.7,74.7 89.8,459.4 81.8,942.6 68.3,957.5 46.9,981.9 24.5,1856.6 1601.3,1870.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0022/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1204.0,536.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.92015073085834,46.14629984653555]}},{"type":"Feature","properties":{"resourceCoords":[1571.0,1431.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.91985730733393,46.144520184833425]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p23","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"27"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T13:39:03Z","modified":"2026-10-19T13:39:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0023/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0023","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"78.8,964.2 1.0,964.5 1.0,1022.2 81.0,1022.1 94.0,1420.0 101.2,1856.6 1558.7,1862.9 1610.9,1441.1 1557.8,1072.1 1585.3,39.5 1433.1,28.1 1415.8,50.8 1198.0,44.2 1198.3,58.9 817.0,65.0 454.4,62.7 76.3,65.5 80.5,539.8 82.8,539.8 81.0,963.9 78.8,964.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0023/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[817.0,65.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9169195,46.1465626]}},{"type":"Feature","properties":{"resourceCoords":[94.0,1420.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9197932,46.1445081]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0024__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p24 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.90"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"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":"2026-10-19T13:39:03Z","modified":"2026-10-19T13:39:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0024__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0024","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"105.9,1622.7 104.2,1769.8 100.1,1770.4 103.4,1872.3 385.1,1872.8 471.9,1798.4 471.4,1301.5 506.5,1200.0 506.5,1194.5 508.4,1194.5 508.4,1194.3 897.3,1183.3 944.1,1024.7 945.0,806.4 956.3,803.3 1305.2,798.5 1307.8,800.0 1308.2,800.0 1309.2,800.8 1539.2,935.5 1561.2,722.9 1518.4,462.6 1571.3,223.4 1526.9,121.6 1497.7,155.3 1359.6,190.0 1301.0,121.9 1086.6,47.7 133.7,64.0 99.9,72.6 78.9,411.4 73.7,412.7 58.5,562.5 40.9,562.4 85.4,757.0 84.1,757.0 93.5,945.0 97.7,945.1 88.8,1279.4 102.6,1279.1 105.7,1396.4 105.9,1622.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0024__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[681.0,569.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9037483,46.1363872]}},{"type":"Feature","properties":{"resourceCoords":[292.0,1392.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9068283,46.1337883]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0024__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p24 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.58"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2026.0"},{"label":"split_canvas_y","value":"3200.0"},{"label":"split_canvas_w","value":"4426.0"},{"label":"split_canvas_h","value":"4452.0"}],"created":"2026-10-19T13:39:03Z","modified":"2026-10-19T13:39:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0024__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0024","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1120.0,1877.2 1365.6,1879.3 1548.3,1842.2 1577.2,1739.6 1582.8,1179.8 1545.7,1029.8 1509.0,978.7 1472.5,997.1 1424.8,960.7 1336.6,829.3 1113.5,811.7 1069.6,822.8 1055.1,863.1 982.0,863.4 963.9,932.9 982.3,958.5 982.5,1046.3 964.7,1178.1 945.0,1193.0 945.0,1194.5 944.8,1194.5 943.0,1194.5 891.7,1233.2 566.2,1230.6 542.2,1297.5 557.0,1292.9 580.6,1457.5 563.1,1457.2 546.7,1647.2 549.9,1647.2 521.4,1842.0 710.2,1842.1 710.3,1852.7 1119.8,1866.6 1120.0,1877.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0024__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[716.4,1453.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.90196984283578,46.15163732745789]}},{"type":"Feature","properties":{"resourceCoords":[716.4,1833.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9019763660482,46.150236396220954]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0026__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p26 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.49"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"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":"2026-10-19T13:39:03Z","modified":"2026-10-19T13:39:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0026__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0026","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1396.3,1865.8 1510.6,1863.0 1551.6,1813.3 1567.0,1308.8 1508.5,1081.2 1465.6,1036.4 1465.9,876.2 1518.1,825.5 1441.4,804.3 1375.2,741.0 959.5,738.7 916.7,701.5 878.0,500.2 739.6,282.1 666.3,70.1 612.5,52.2 238.5,37.6 124.8,66.9 83.8,109.7 110.4,624.0 47.2,1041.1 91.3,1654.2 89.6,1662.3 166.3,1672.4 173.3,1710.5 384.5,1707.2 584.6,1705.1 717.6,1698.5 833.7,1705.0 839.5,1828.0 1048.0,1841.8 1048.0,1842.9 1351.4,1845.5 1351.4,1851.3 1396.3,1865.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0026__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1042.0,1700.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9077683,46.1557434]}},{"type":"Feature","properties":{"resourceCoords":[1351.0,1700.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9061905,46.1557192]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p2 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.92"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3108.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"4544.0"}],"created":"2026-10-19T13:39:03Z","modified":"2026-10-19T13:39:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"216.2,1897.1 567.9,1865.0 572.5,1875.3 1112.0,1864.0 1593.0,1868.3 1589.5,941.5 1369.1,919.7 1115.7,921.4 734.9,909.0 333.0,898.0 322.9,824.9 177.4,801.2 157.9,878.0 93.0,862.0 40.8,926.3 18.4,1644.5 64.2,1885.1 216.2,1897.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1112.0,1864.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9100612,46.1540095]}},{"type":"Feature","properties":{"resourceCoords":[333.0,898.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9122053,46.1557741]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p2 [2]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.95"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"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":"3204.8"}],"created":"2026-10-19T13:39:03Z","modified":"2026-10-19T13:39:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"305.8,377.8 208.7,757.1 365.9,793.9 519.0,765.5 794.0,759.2 1308.5,768.5 1308.5,766.5 1505.1,763.7 1474.5,75.9 1612.0,78.5 1612.0,67.8 1612.0,57.2 794.8,21.2 794.8,1.0 385.2,1.0 349.0,173.5 305.8,377.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[794.0,383.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9020047,46.1494951]}},{"type":"Feature","properties":{"resourceCoords":[794.0,759.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9019977,46.1488003]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p3 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.78"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"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":"2026-10-19T13:39:03Z","modified":"2026-10-19T13:39:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"537.7,1475.9 540.0,1228.3 548.3,1228.6 623.4,1231.7 644.2,1161.8 1034.8,1178.8 1360.3,1196.7 1373.7,1262.0 1394.0,1262.8 1504.6,1267.3 1521.6,1212.6 1539.0,84.0 1043.5,71.5 487.4,74.1 482.8,63.4 119.9,90.6 34.5,781.9 54.7,1845.5 352.6,1886.5 505.0,1827.8 536.4,1611.0 537.2,1526.5 537.7,1475.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1539.0,84.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9087707,46.1540202]}},{"type":"Feature","properties":{"resourceCoords":[558.0,1158.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.911219,46.1520187]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0003__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p3 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.64"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2134.4"},{"label":"split_canvas_y","value":"4913.2"},{"label":"split_canvas_w","value":"4317.6"},{"label":"split_canvas_h","value":"2738.8"}],"created":"2026-10-19T13:39:03Z","modified":"2026-10-19T13:39:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0003__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"539.9,1244.7 539.6,1269.8 539.5,1281.6 578.0,1281.9 548.3,1854.0 580.2,1911.9 766.8,1912.0 786.6,1912.0 777.6,1898.7 789.2,1885.3 878.8,1880.1 938.8,1888.0 943.1,1911.7 1550.5,1910.7 1586.9,1765.0 1568.7,1700.3 1599.1,1647.7 1590.3,1332.5 1612.0,1332.8 1612.0,1320.7 1284.5,1298.8 1284.2,1284.2 1129.8,1281.1 1056.6,1279.6 829.3,1274.8 576.6,1264.2 567.4,1229.4 540.0,1228.3 539.9,1244.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0003__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[831.4,1470.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.90416750624385,46.14202318318124]}},{"type":"Feature","properties":{"resourceCoords":[1051.3,1651.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.90299719556835,46.142657812672844]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p4 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.98"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4680.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T13:39:03Z","modified":"2026-10-19T13:39:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"841.0,1877.1 918.9,1799.7 884.6,1912.0 937.5,1912.0 1161.8,1699.8 1162.2,1643.1 1162.5,1600.2 1130.8,1588.4 1164.5,887.6 1103.8,149.2 1019.1,118.1 1019.5,107.0 438.8,79.3 438.9,77.4 40.8,35.4 46.4,732.1 51.9,1834.4 448.6,1845.4 445.3,1858.3 835.0,1882.3 841.0,1877.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[441.0,727.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.907719,46.1540418]}},{"type":"Feature","properties":{"resourceCoords":[813.0,727.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9067274,46.1540533]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p5","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T13:39:03Z","modified":"2026-10-19T13:39:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"443.0,1663.0 827.8,1670.3 827.7,1623.5 1179.7,1638.5 1161.0,1673.7 1599.5,1625.3 1596.8,1487.7 1604.3,1487.8 1572.2,344.6 1595.5,309.1 1215.2,389.2 1215.0,376.0 831.4,470.5 830.8,526.1 707.4,557.6 676.8,500.4 368.5,574.2 1.0,666.5 1.0,1034.3 24.3,1115.2 55.2,1325.9 91.6,1411.2 85.5,1532.5 95.6,1601.1 153.7,1612.8 187.2,1647.1 261.1,1666.7 443.0,1663.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1215.0,376.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9076488,46.1519769]}},{"type":"Feature","properties":{"resourceCoords":[443.0,1663.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9105119,46.1500226]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p6","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T13:39:03Z","modified":"2026-10-19T13:39:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"64.5,476.4 36.6,518.1 64.7,1912.0 65.1,1912.0 67.9,1832.8 804.1,1847.8 804.1,1824.4 1188.3,1830.4 1569.0,1834.0 1568.7,1445.9 1559.8,1239.1 1551.8,1059.9 1582.3,1051.5 1544.8,663.8 1538.7,665.4 1480.5,292.8 1514.2,285.1 1399.5,1.0 1364.2,1.0 1361.7,24.4 1077.3,20.9 821.0,219.1 445.3,298.0 397.9,138.2 301.4,129.0 326.2,224.6 165.9,485.1 115.2,498.7 119.3,382.4 64.5,476.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[808.0,1064.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9050437,46.1505325]}},{"type":"Feature","properties":{"resourceCoords":[1569.0,1834.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9035591,46.1487967]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p7","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T13:39:03Z","modified":"2026-10-19T13:39:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"360.8,1749.3 541.6,1740.7 812.0,1738.0 1596.4,1723.5 1582.2,1329.2 1580.4,939.1 1574.2,939.3 1585.9,256.9 1575.8,1.0 1568.2,1.0 1572.4,137.8 1133.8,190.8 1152.3,155.2 799.8,143.9 800.4,190.8 415.1,187.5 376.7,188.7 233.1,193.1 158.9,174.2 125.0,140.3 66.8,129.1 56.0,60.6 32.9,647.5 88.8,1303.2 21.9,1615.0 103.8,1751.3 99.9,1800.0 257.3,1764.0 322.8,1754.7 360.8,1749.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[812.0,1340.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9102878,46.1477685]}},{"type":"Feature","properties":{"resourceCoords":[812.0,1738.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9105645,46.1470561]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p8","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"18"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T13:39:03Z","modified":"2026-10-19T13:39:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"56.8,1339.8 57.9,952.7 51.8,952.8 70.6,196.6 805.4,203.8 805.1,180.4 1188.5,182.4 1568.5,182.0 1568.8,565.6 1586.9,931.8 1572.0,1332.0 1570.4,1712.2 1202.0,1731.2 438.9,1727.3 67.8,1731.3 56.8,1339.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[809.0,566.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9058015,46.1484607]}},{"type":"Feature","properties":{"resourceCoords":[1572.0,1332.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.9043323,46.1467167]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Kelso, Washington | 1949 | sanborn09209_008 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T13:39:03Z","modified":"2026-10-19T13:39:03Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"29.6,1485.9 51.4,1079.5 39.0,707.3 44.7,344.1 45.1,317.6 150.2,315.9 207.4,315.1 282.2,280.8 349.8,249.9 616.4,176.6 1059.7,73.8 1120.3,59.8 1119.8,57.9 1310.8,7.0 1316.8,26.9 1576.4,69.5 1574.2,1859.9 395.6,1894.0 391.6,1874.9 21.7,1872.1 29.6,1485.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284km:g4284km_g092091949:09209_1949-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[40.0,714.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.90382098011558,46.14809091564069]}},{"type":"Feature","properties":{"resourceCoords":[400.0,1478.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-122.90337238780225,46.14656974246505]}}]}}]}