State Boundary

The 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.
Organization: State of Maryland
Organization URL: https://catalog.data.gov/organization/maryland
Last updated: 2026-06-09
Tags: boundary, counties, county, dynamic, kml, maryland, md imap, mdot, mdot sha, mdp, municipalities, political, vector, wfs, wms, zip codes