-
University
National Park Boundaries
Earth Data Analysis Center, University of New Mexico —
National Park Service unit boundaries. -
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
Administrative Boundaries Centroids of National Park System Units NGDA
Department of the Interior —
National Park Service unit points. -
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...