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Federal
Administrative Boundaries Centroids of National Park System Units NGDA
Department of the Interior —
National Park Service unit points. -
Federal
NCRN Bird Monitoring Data 2007 - 2017
Department of the Interior —
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... -
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
Hydrographic and Impairment Statistics Database: GWMP
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
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
NCRN_Fish_Inv_Sites
Department of the Interior —
This layer represents locational data for fish surveys of streams and ponds of six parks within the National Park Service National Capital Region. Point locations... -
Federal
Surface Elevation Table Measurements Along the Atlantic Seaboard, 2025 Cumulative Data Package
Department of the Interior —
The National Park Service (NPS) in response to the growing evidence and awareness of the effects of climate change on federal lands determined that monitoring wetland... -
Federal
Inventory and Biological Monitoring of Fishes
Department of the Interior —
This report summarizes a three-year (2002-2004) inventory of fishes in six parks of the National Capital Region: Antietam National Battlefield, Chesapeake and Ohio... -
Federal
George Washington Memorial Parkway 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
Presidential Memorials in DC and President-Associated Sites, National Mall and Memorial Parks
Department of the Interior —
Locations of Presidential Memorials in the District of Columbia associated with the National Mall and Memorial Parks and George Washington Memorial Parkway. -
Federal
Aerial Photography 2004, Color Infrared George Washington Memorial Parkway
Department of the Interior —
This color infrared imagery covers the area in and around the George Washington Memorial Parkway (GWMP). The photographs were taken in 2004 and published in 2006....