{"@type": "dcat:Dataset", "accessLevel": "public", "contactPoint": {"@type": "vcard:Contact", "fn": "ctgisoffice", "hasEmail": "mailto:opm.giso@ct.gov"}, "description": "<p><strong>Overview</strong></p><p>This Feature Service provides detailed geographic information on steep slope areas within the state of Connecticut. This layer was derived from the 2023 Digital Elevation Model from the <a target='_blank' href='https://maps.cteco.uconn.edu/data/flight2023/' rel='nofollow ugc noopener noreferrer'>2023 Spring imagery and lidar capture</a>. It is developed to support planning, environmental management, and risk assessment related to slope stability.</p><p>&nbsp;</p><p>Details about layer development: <a target='_blank' href='https://github.com/ctgisoffice/steep_slopes' rel='nofollow ugc noopener noreferrer'>https://github.com/ctgisoffice/steep_slopes</a></p><p>&nbsp;</p><p><strong>Feature Layers</strong></p><ul><li><strong>Steep Slope 10 ft</strong>: This layer maps areas with steep slopes derived from a 10-feet per pixel DEM, providing details such as slope percentage, municipality, and council of governments (COG) region. It offers data for assessing terrain steepness over larger vertical intervals.</li><li><strong>Steep Slope 2 ft</strong>: This layer captures steep slopes derived from a 2-foot per pixel DEM, allowing for more detailed slope analysis at a smaller vertical resolution. Similar attribute details like slope percent, municipality, and COG are included, supporting higher-resolution terrain studies.</li></ul><p>&nbsp;</p><p><strong>Geographic Coverage</strong></p><p>The data covers the landscape of Connecticut, focusing on areas with significant slope gradients that may impact land use and development.</p><p>&nbsp;</p><p style='line-height:125%;'><span><strong>Classifications</strong></span></p><ul><li><p style='margin-bottom:0in; margin-right:0in; margin-top:0in;'><span>Agency: OPM</span></p></li><li><p style='margin-bottom:0in; margin-right:0in; margin-top:0in;'><span>Sensitivity: Public</span></p></li></ul><p>&nbsp;</p><p style='line-height:125%;'><span><strong>Currency </strong>(time)</span></p><ul><li><p style='margin-bottom:0in; margin-right:0in; margin-top:0in;'><span>Created Data: 2026</span></p></li><li><p style='margin-bottom:0in; margin-right:0in; margin-top:0in;'><span>Update Frequency (estimated): none</span></p></li></ul><p>&nbsp;</p><p style='line-height:125%;'><span><strong>Lineage</strong></span></p><ul><li><span>Originated: D</span>erived from the 2023 Digital Elevation Model from the <a target='_blank' href='https://maps.cteco.uconn.edu/data/flight2023/' rel='nofollow ugc noopener noreferrer'>2023 Spring imagery and lidar capture</a></li></ul><p>&nbsp;</p><p style='line-height:125%;'><strong>Attributes</strong></p><ul><li><p style='line-height:125%;'><strong>Slope_Percent </strong>- The category of percent steep slope. Moderate (10%-15%), Steep (15%-20%), Very Steep (20%+).</p></li><li><p style='line-height:125%;'><strong>Muni </strong>- Municipality</p></li><li><p style='line-height:125%;'><strong>COG </strong>- Council of Governments</p></li></ul><p>&nbsp;</p>", "distribution": [{"@type": "dcat:Distribution", "downloadURL": "https://geodata.ct.gov/datasets/ctmaps::steep-slope-10-ft", "mediaType": "text/html", "title": "ArcGIS Hub Dataset"}, {"@type": "dcat:Distribution", "downloadURL": "https://services3.arcgis.com/3FL1kr7L4LvwA2Kb/arcgis/rest/services/Connecticut_Steep_Slopes/FeatureServer/1", "mediaType": "application/json", "title": "ArcGIS GeoService"}, {"@type": "dcat:Distribution", "downloadURL": "https://geodata.ct.gov/api/download/v1/items/64e698b122464435a56172f576f3d2a6/csv?layers=1", "mediaType": "text/csv", "title": "CSV"}, {"@type": "dcat:Distribution", "downloadURL": "https://geodata.ct.gov/api/download/v1/items/64e698b122464435a56172f576f3d2a6/shapefile?layers=1", "mediaType": "application/zip", "title": "Shapefile"}, {"@type": "dcat:Distribution", "downloadURL": "https://geodata.ct.gov/api/download/v1/items/64e698b122464435a56172f576f3d2a6/geojson?layers=1", "mediaType": "application/vnd.geo+json", "title": "GeoJSON"}, {"@type": "dcat:Distribution", "downloadURL": "https://geodata.ct.gov/api/download/v1/items/64e698b122464435a56172f576f3d2a6/kml?layers=1", "mediaType": "application/vnd.google-earth.kml+xml", "title": "KML"}, {"@type": "dcat:Distribution", "downloadURL": "https://geodata.ct.gov/api/download/v1/items/64e698b122464435a56172f576f3d2a6/filegdb?layers=1", "mediaType": "application/zip", "title": "File Geodatabase"}, {"@type": "dcat:Distribution", "downloadURL": "https://geodata.ct.gov/api/download/v1/items/64e698b122464435a56172f576f3d2a6/featureCollection?layers=1", "mediaType": "text/plain", "title": "Feature Collection"}, {"@type": "dcat:Distribution", "downloadURL": "https://geodata.ct.gov/api/download/v1/items/64e698b122464435a56172f576f3d2a6/excel?layers=1", "mediaType": "application/vnd.ms-excel", "title": "Excel"}, {"@type": "dcat:Distribution", "downloadURL": "https://geodata.ct.gov/api/download/v1/items/64e698b122464435a56172f576f3d2a6/geoPackage?layers=1", "mediaType": "application/geopackage+sqlite3", "title": "GeoPackage"}, {"@type": "dcat:Distribution", "downloadURL": "https://geodata.ct.gov/api/download/v1/items/64e698b122464435a56172f576f3d2a6/sqlite?layers=1", "mediaType": "application/geopackage+sqlite3", "title": "SQLite Geodatabase"}], "identifier": "https://www.arcgis.com/home/item.html?id=64e698b122464435a56172f576f3d2a6&sublayer=1", "issued": "2026-03-04", "keyword": ["connecticut", "land use", "steep slopes"], "landingPage": "https://geodata.ct.gov/datasets/ctmaps::steep-slope-10-ft", "license": "https://creativecommons.org/publicdomain/zero/1.0", "modified": "2026-04-08", "publisher": {"@type": "org:Organization", "name": "State of Connecticut"}, "spatial": "-73.7260,40.9803,-71.7813,42.0486", "theme": ["geospatial"], "title": "Steep Slope 10 ft"}