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Federal
Digital Geologic Map of Chesapeake and Ohio Canal National Historical Park and Vicinity, District of Columbia, Virginia, Maryland and West Virginia (NPS, GRD, GRI, CHOH, CHOH digital map)
Department of the Interior —
The Digital Geologic Map of Chesapeake and Ohio Canal National Historical Park and Vicinity, District of Columbia, Virginia, Maryland and West Virginia is composed of... -
Federal
Digital Geologic-GIS Map of the Port Tobacco Quadrangle, Maryland (NPS, GRD, GRI, THST, POTO digital map) adapted from a Maryland Geological Survey Quadrangle Geologic Map by Glaser (1984)
Department of the Interior —
The Digital Geologic-GIS Map of the Port Tobacco Quadrangle, Maryland is composed of GIS data layers and GIS tables, and is available in the following GRI-supported... -
Federal
Digital Geologic Map of George Washington Memorial Parkway and parks in the National Capital Area, Virginia, Maryland, and the District of Columbia (NPS, GRD, GRI, GWMP, ROCR, NACE, GREE, CHOH, GWMP digital map)
Department of the Interior —
The Digital Geologic Map of George Washington Memorial Parkway and parks in the National Capital Area, Virginia, Maryland, and the District of Columbia is composed of... -
Federal
Digital Geomorphic Map of Assateague Island National Seashore, Maryland and Virginia (NPS, GRD, GRI, ASIS, ASIS digital map)
Department of the Interior —
The Digital Geomorphic Map of Assateague Island National Seashore, Maryland and Virginia is composed of GIS data layers complete with ArcMap 9.3 layer (.LYR) files,... -
Federal
Digital Geologic-GIS Map of George Washington Birthplace National Monument and Vicinity, Virginia and Maryland
Department of the Interior —
The Digital Geologic-GIS Map of George Washington Birthplace National Monument and Vicinity, Virginia and Maryland is composed of GIS data layers and GIS tables, and... -
Federal
Digital Geologic Map of Antietam National Battlefield and Vicinity, Maryland (NPS, GRD, GRI, ANTI, ANTI digital map)
Department of the Interior —
The Digital Geologic Map of Antietam National Battlefield and Vicinity, Maryland is composed of GIS data layers complete with ArcMap 9.3 layer (.LYR) files, two... -
Federal
Digital Geologic-GIS Map of Thomas Stone National Historic Site and Vicinity, Maryland and Virginia (NPS, GRD, GRI, THST, THST digital map) adapted from a U.S. Geological Survey Geologic Investigations Series Map by Mixon et al. (2000), and a Maryland Geological Survey Quadrangle Geologic Map by Glaser (1984)
Department of the Interior —
The Digital Geologic-GIS Map of Thomas Stone National Historic Site and Vicinity, Maryland and Virginia is composed of GIS data layers and GIS tables, and is...