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Federal
Administrative Boundaries Centroids of National Park System Units NGDA recent views
Department of the Interior —
National Park Service unit points. -
Federal
Digital Geologic Map of Antietam National Battlefield and Vicinity, Maryland (NPS, GRD, GRI, ANTI, ANTI digital map) recent views
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 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) recent views
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
Antietam National Battlefield Tract and Boundary Data recent views
Department of the Interior —
These ESRI shape files are of National Park Service tract and boundary data that was created by the Land Resources Division. Tracts are numbered and created by the... -
Federal
Hydrographic and Impairment Statistics Database: ANTI recent views
Department of the Interior —
Hydrographic and Impairment Statistics (HIS) is a National Park Service (NPS) Water Resources Division (WRD) project established to track certain goals created in... -
Federal
Hydrographic and Impairment Statistics Database: ANTI recent views
Department of the Interior —
Hydrographic and Impairment Statistics (HIS) is a National Park Service (NPS) Water Resources Division (WRD) project established to track certain goals created in...