{"action":"create","ckan_id":null,"date_created":"Mon, 16 Mar 2026 11:30:13 GMT","date_finished":null,"harvest_job_id":"2e0fa733-2c07-4854-8d62-5fdb23a2b56d","harvest_source_id":"45128e59-6202-4d80-b562-79a78ffe01f0","id":"0307feb3-3805-4d34-acd6-a9e94f145f4a","identifier":"https://www.arcgis.com/home/item.html?id=1c1732b9c9aa42d7bac41f94cf7fd957&sublayer=0","parent_identifier":null,"source_hash":"133a063b4022e33ead49c647528ade915da1e62a6397536fd17b620670f0cc83","source_raw":"{\"@type\": \"dcat:Dataset\", \"accessLevel\": \"public\", \"contactPoint\": {\"@type\": \"vcard:Contact\", \"fn\": \"irm_admin\", \"hasEmail\": \"mailto:dnr.gispub@alaska.gov\"}, \"description\": \"Township boundaries were generated from radian measurements of township corner coordinates, represented\\nto the nearest 0.001 second, recorded on official protraction diagrams of the state from BLM and ADNR.\\nADNR used 1994 AEH coordinate files from BLM as the basis of its work. BLM provided information for 18,654\\nland-based townships, and ADNR added another 774 (prior to 1996) townships that cover marine areas. Based\\non ADNR research, corner coordinates were modified for approximately 600 townships to correct the east-west\\nand/or north-south alignment of neighboring townships. ADNR research also ensured that townships match\\nacross meridian lines.\\n\\nOut of a total 19,425 townships currently defined for the state, 52 were identified by BLM as being irregular,\\nthat is, they cannot be describe by four corner points. During ADNR processing, many other minor adjustments\\nwere made to resolve spatial anomalies. Irregular townships are outlined using as many corner points as necessary,\\nwhich was typically six to represent L-shaped townships. Many complex townships, including those along the\\nUS/Canadian border and those where meridians join, are described by more than six corner points; a few by only\\n3 points.\\n\\nUsing a geographic projection, ADNR created a double-precision coverage for the entire state from a compilation\\nof the regular and irregular townships. Several iterations using ARC/INFO were required to find and resolve\\ndiscrepancies in the tabular database. Arcs were densified while the township outlines were still in a geographic\\nprojection, to maintain the proper curvature of boundary lines during subsequent projection to other coordinate\\nsystems. The final result is a set of statewide coverages, both single-precision and double-precision, in both\\nthe Albers projection and geographic coordinates. The final coverages maintain as closely as possible the original\\nprotracted coordinate values.\", \"distribution\": [{\"@type\": \"dcat:Distribution\", \"accessURL\": \"https://arcgis.dnr.alaska.gov/arcgis/rest/services/OpenData/ReferenceGrid_PLSSgrid/FeatureServer/0\", \"format\": \"ArcGIS GeoServices REST API\", \"mediaType\": \"application/json\", \"title\": \"ArcGIS GeoService\"}, {\"@type\": \"dcat:Distribution\", \"accessURL\": \"https://data-soa-dnr.opendata.arcgis.com/api/download/v1/items/1c1732b9c9aa42d7bac41f94cf7fd957/csv?layers=0\", \"format\": \"CSV\", \"mediaType\": \"text/csv\", \"title\": \"CSV\"}, {\"@type\": \"dcat:Distribution\", \"accessURL\": \"https://data-soa-dnr.opendata.arcgis.com/api/download/v1/items/1c1732b9c9aa42d7bac41f94cf7fd957/filegdb?layers=0\", \"format\": \"ZIP\", \"mediaType\": \"application/zip\", \"title\": \"File Geodatabase\"}, {\"@type\": \"dcat:Distribution\", \"accessURL\": \"https://data-soa-dnr.opendata.arcgis.com/api/download/v1/items/1c1732b9c9aa42d7bac41f94cf7fd957/geojson?layers=0\", \"format\": \"GeoJSON\", \"mediaType\": \"application/vnd.geo+json\", \"title\": \"GeoJSON\"}, {\"@type\": \"dcat:Distribution\", \"accessURL\": \"https://data-soa-dnr.opendata.arcgis.com/api/download/v1/items/1c1732b9c9aa42d7bac41f94cf7fd957/kml?layers=0\", \"format\": \"KML\", \"mediaType\": \"application/vnd.google-earth.kml+xml\", \"title\": \"KML\"}, {\"@type\": \"dcat:Distribution\", \"accessURL\": \"https://data-soa-dnr.opendata.arcgis.com/api/download/v1/items/1c1732b9c9aa42d7bac41f94cf7fd957/shapefile?layers=0\", \"format\": \"ZIP\", \"mediaType\": \"application/zip\", \"title\": \"Shapefile\"}, {\"@type\": \"dcat:Distribution\", \"accessURL\": \"https://data-soa-dnr.opendata.arcgis.com/datasets/SOA-DNR::plss-grid-clipped-townships\", \"format\": \"Web Page\", \"mediaType\": \"text/html\", \"title\": \"ArcGIS Hub Dataset\"}], \"identifier\": \"https://www.arcgis.com/home/item.html?id=1c1732b9c9aa42d7bac41f94cf7fd957&sublayer=0\", \"issued\": \"2019-09-10T23:34:31.000Z\", \"keyword\": [\"Alaska\", \"data.gov\", \"graticule\", \"meridian\", \"mtr\", \"mtrs\", \"protractions\", \"range\", \"reference\", \"reference grid\", \"surveys\", \"townships\", \"twps\"], \"landingPage\": \"https://data-soa-dnr.opendata.arcgis.com/datasets/SOA-DNR::plss-grid-clipped-townships\", \"license\": \"Accuracy derived from BLM and ADNR protractions to 0.001 second (except for some of the older protraction diagrams which were only recorded to 0.01 second).  Any hardcopies or published datasets utilizing these data sets shall clearly indicate their source. If the user has modified the data in any way they are obligated to describe the types of modifications they have performed. User specifically agrees not to misrepresent these data sets, nor to imply that changes they made were approved by the Alaska Department of Natural Resources.\", \"modified\": \"2022-10-21T17:17:51.000Z\", \"publisher\": {\"name\": \"Alaska Department of Natural Resources - Information Resource Management Section\"}, \"spatial\": \"175.5479,49.1271,-117.3846,67.5660\", \"theme\": [\"geospatial\"], \"title\": \"PLSS Grid Clipped Townships\"}","source_transform":null,"status":"error"}