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Administrative Boundaries Centroids of National Park System Units 06/30/2022
National Park Service unit points. -
Hydrographic and Impairment Statistics Database: GWMP
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... -
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... -
Summary and synthesis of 15 years of the Amphibian Vital Sign monitoring in t...
This data set is comprised of four files related to the counts of amphibian species in the National Capital Region of the United States. Data was obtained from surveys of both... -
Hydrographic and Impairment Statistics Database: GWMP
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... -
Administrative Boundaries Centroids of National Park System Units 06/30/2022
National Park Service unit points. -
Digital Geologic Map of George Washington Memorial Parkway and parks in the N...
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 GIS data... -
Summary and synthesis of 15 years of the Amphibian Vital Sign monitoring in t...
This data set is comprised of four files related to the counts of amphibian species in the National Capital Region of the United States. Data was obtained from surveys of both... -
Summary and synthesis of 15 years of the Amphibian Vital Sign monitoring in t...
This data set is comprised of four files related to the counts of amphibian species in the National Capital Region of the United States. Data was obtained from surveys of both... -
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...