DoITThe Maryland county boundaries were built using the USGS Topo Quads, county boundaries from the county governments, monument points, and historic records from the Maryland Archive. This layer has been dissolved from the County Boundaries layer. This is a MD iMAP hosted service. Find more information at https://imap.maryland.gov . Feature Service Link: https://mdgeodata.md.gov/imap/rest/services/Boundaries/MD_PoliticalBoundaries/FeatureServer/0ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/79b8acd97e3d4cc0ab81244edc2f83e4_0engMaryland iMapPublicMaryland Political Boundaries - State Boundary [Maryland]Web servicesMarylandLast Modified: 2025-05-12