-
Federal
NCRN Bird Monitoring Data 2007 - 2017 recent views
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 recent views
Department of the Interior —
National Park Service unit points. -
Federal
Administrative Boundaries Centroids of National Park System Units NGDA recent views
Department of the Interior —
National Park Service unit points. -
Federal
Administrative Boundaries Centroids of National Park System Units NGDA recent views
Department of the Interior —
National Park Service unit points. -
Federal
Administrative Boundaries Centroids of National Park System Units NGDA recent views
Department of the Interior —
National Park Service unit points. -
Federal
Digital Geologic Map of Antietam National Battlefield and Vicinity, Maryland (NPS, GRD, GRI, ANTI, ANTI digital map) recent views
Department of the Interior —
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... -
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) recent views
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
Administrative Boundaries Centroids of National Park System Units NGDA recent views
Department of the Interior —
National Park Service unit points. -
Federal
Hydrographic and Impairment Statistics Database: ANTI recent views
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
Metabarcode sequencing of aquatic environmental DNA from the Potomac River Watershed, 2015-2020 recent views
Department of the Interior —
Biological indicator taxa have long been used for integrative assessments of water quality, particularly benthic invertebrate groups such as arthropods. While...