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Federal
Administrative Boundaries Centroids of National Park System Units NGDA 13 recent views
Department of the Interior —
National Park Service unit points. -
Federal
Administrative Boundaries Centroids of National Park System Units NGDA
Department of the Interior —
National Park Service unit points. -
Federal
Hydrographic and Impairment Statistics Database: THST
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
Thomas Stone National Historic Site Tract and Boundary Data
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
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
Administrative Boundaries Centroids of National Park System Units NGDA
Department of the Interior —
National Park Service unit points. -
Federal
Administrative Boundaries Centroids of National Park System Units NGDA
Department of the Interior —
National Park Service unit points. -
Federal
EAARL Topography-Thomas Stone National Historic Site
Department of the Interior —
A first surface elevation map (also known as a Digital Elevation Model or DEM) of Thomas Stone National Historic Site was produced from remotely-sensed,... -
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...