{ "type": "FeatureCollection", "features": [ { "type": "Feature", "properties": { "id": "archival_front_normandy_1944_06_06", "name": "LOC situation-map reference front - Normandy D-Day, June 6 1944", "type": "archival_front_reference", "theater": "Western Front", "source": "loc_twelfth_army_group_item_bulge_set", "confidence": "archival_reference", "review_status": "archival_reference", "geometry_status": "archival_reference_schematic", "date": "1944-06-06", "map_date": "1944-06-06", "archive_url": "https://www.loc.gov/item/2001628569/", "georeference_status": "not_georeferenced", "digitization_status": "reference_schematic", "summary": "Reference line tied to LOC Twelfth Army Group situation-map series. Requires raster georeferencing and manual frontline tracing." }, "geometry": { "type": "LineString", "coordinates": [ [ -1.7, 49.7 ], [ -1.05, 49.45 ], [ -0.35, 49.35 ], [ 0.45, 49.42 ] ] } }, { "type": "Feature", "properties": { "id": "archival_front_normandy_breakout_1944_07_29", "name": "LOC situation-map reference front - Normandy breakout, July 29 1944", "type": "archival_front_reference", "theater": "Western Front", "source": "loc_twelfth_army_group_1944_07_29", "confidence": "archival_reference", "review_status": "archival_reference", "geometry_status": "archival_reference_schematic", "date": "1944-07-29", "map_date": "1944-07-29", "archive_url": "https://www.loc.gov/item/2004629092/", "georeference_status": "not_georeferenced", "digitization_status": "reference_schematic", "summary": "Reference line for late July Normandy from a LOC item-level situation-map record." }, "geometry": { "type": "LineString", "coordinates": [ [ -2.0, 49.25 ], [ -1.25, 48.9 ], [ -0.15, 48.75 ], [ 0.55, 48.95 ], [ 1.1, 49.25 ] ] } }, { "type": "Feature", "properties": { "id": "archival_front_western_1944_09_11", "name": "LOC situation-map reference front - Western Europe, September 11 1944", "type": "archival_front_reference", "theater": "Western Front", "source": "loc_ww2_situation_maps", "confidence": "archival_reference", "review_status": "archival_reference", "geometry_status": "archival_reference_schematic", "date": "1944-09-11", "map_date": "1944-09-11", "archive_url": "https://www.loc.gov/collections/world-war-ii-maps-military-situation-maps-from-1944-to-1945/", "georeference_status": "not_georeferenced", "digitization_status": "reference_schematic", "summary": "Date cited in LOC related situation-map records; geometry is a placeholder trace pending item-level digitization." }, "geometry": { "type": "LineString", "coordinates": [ [ 1.5, 51.0 ], [ 3.0, 50.5 ], [ 4.8, 50.4 ], [ 5.9, 49.9 ], [ 6.3, 49.3 ] ] } }, { "type": "Feature", "properties": { "id": "archival_front_pre_ardennes_1944_12_11", "name": "LOC situation-map reference front - pre-Ardennes, December 11 1944", "type": "archival_front_reference", "theater": "Western Front", "source": "loc_twelfth_army_group_1944_12_11", "confidence": "archival_reference", "review_status": "archival_reference", "geometry_status": "archival_reference_schematic", "date": "1944-12-11", "map_date": "1944-12-11", "archive_url": "https://www.loc.gov/item/2004630284/", "georeference_status": "not_georeferenced", "digitization_status": "reference_schematic", "summary": "Source-registered December 11 1944 line, useful as pre-Battle-of-the-Bulge reference." }, "geometry": { "type": "LineString", "coordinates": [ [ 3.9, 51.1 ], [ 5.4, 50.75 ], [ 6.15, 50.2 ], [ 6.2, 49.45 ], [ 7.1, 48.8 ] ] } }, { "type": "Feature", "properties": { "id": "archival_front_bulge_1944_12_24", "name": "LOC Battle of the Bulge reference front - December 24 1944", "type": "archival_front_reference", "theater": "Western Front", "source": "loc_bulge_essay", "confidence": "archival_reference", "review_status": "archival_reference", "geometry_status": "archival_reference_schematic", "date": "1944-12-24", "map_date": "1944-12-24", "archive_url": "https://www.loc.gov/collections/world-war-ii-maps-military-situation-maps-from-1944-to-1945/articles-and-essays/the-battle-of-the-bulge/", "georeference_status": "not_georeferenced", "digitization_status": "reference_schematic", "summary": "Battle of the Bulge reference line linked to LOC campaign essay and situation-map collection." }, "geometry": { "type": "LineString", "coordinates": [ [ 4.0, 50.8 ], [ 5.2, 50.4 ], [ 5.8, 50.05 ], [ 5.7, 49.75 ], [ 6.25, 49.45 ], [ 7.0, 48.9 ] ] } }, { "type": "Feature", "properties": { "id": "archival_front_rhine_1945_03_09", "name": "LOC situation-map reference front - Rhine approach, March 9 1945", "type": "archival_front_reference", "theater": "Western Front", "source": "loc_twelfth_army_group_1945_03_09", "confidence": "archival_reference", "review_status": "archival_reference", "geometry_status": "archival_reference_schematic", "date": "1945-03-09", "map_date": "1945-03-09", "archive_url": "https://www.loc.gov/item/2004631900/", "georeference_status": "not_georeferenced", "digitization_status": "reference_schematic", "summary": "Source-registered March 9 1945 line near the Rhine campaign period." }, "geometry": { "type": "LineString", "coordinates": [ [ 5.6, 51.5 ], [ 6.5, 51.0 ], [ 7.1, 50.45 ], [ 7.7, 50.0 ], [ 8.2, 49.45 ] ] } }, { "type": "Feature", "properties": { "id": "archival_front_europe_1945_04_24", "name": "Truman Library Newsmap reference front - Europe, April 24 1945", "type": "archival_front_reference", "theater": "Europe", "source": "truman_library_newsmap", "confidence": "archival_reference", "review_status": "archival_reference", "geometry_status": "archival_reference_schematic", "date": "1945-04-24", "map_date": "1945-04-24", "archive_url": "https://www.trumanlibrary.gov/maps/m1785-map-european-theater", "georeference_status": "not_georeferenced", "digitization_status": "reference_schematic", "summary": "Reference line linked to Truman Library Newsmap showing European battle lines as of April 24, 1945." }, "geometry": { "type": "LineString", "coordinates": [ [ 8.8, 53.4 ], [ 10.2, 52.8 ], [ 12.6, 52.5 ], [ 13.9, 52.2 ], [ 15.4, 51.0 ], [ 15.0, 49.0 ] ] } } ] }