Description: This data set adds the portion of the Virginia side of the Potomac River for clearer usage in MDE's Shellfish Harvesting Program's Mapping data. The original data source is DNR, MDiMap and the NHD dataset for VA.MD Data available from MD iMap (http://data.imap.maryland.gov/); https://geodata.md.gov/imap/rest/services/Boundaries/MD_MarineBoundaries/MapServerVA Data available from Virginia GIS Clearinghouse (http://vgin.maps.arcgis.com/home/index.html); http://vgin.maps.arcgis.com/apps/PublicGallery/index.html?appid=e7732b94621c4c90bca661e0cc2d5e88