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Administrative Boundaries Centroids of National Park System Units 06/30/2022
National Park Service unit points. -
NCRN Bird Monitoring Data 2007 - 2017
These data represent the first ten years of data collection (2007-2016) on avian abundance/density and distribution in the National Capital Region as part of the Inventory and... -
Digital Geologic Map of Chesapeake and Ohio Canal National Historical Park an...
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 GIS data... -
Administrative Boundaries Centroids of National Park System Units 06/30/2022
National Park Service unit points. -
Hydrographic and Impairment Statistics Database: ANTI
Hydrographic and Impairment Statistics (HIS) is a National Park Service (NPS) Water Resources Division (WRD) project established to track certain goals created in response to... -
Digital Geologic Map of Antietam National Battlefield and Vicinity, Maryland ...
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 ancillary GIS... -
Airborne radiometric survey, Maryland, Pennsylvania, and West Virginia, 2022-...
Radiometric data collected as part of a high-resolution airborne magnetic and radiometric survey over parts of Maryland, Pennsylvania, and West Virginia are provided here as... -
Digital Geologic Map of Chesapeake and Ohio Canal National Historical Park an...
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 GIS data... -
Digital Geologic Map of Antietam National Battlefield and Vicinity, Maryland ...
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 ancillary GIS...
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