Found 17 datasets matching filters.
-
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 Monitoring Program....
Search relevance: 1.00 | Views last month: 44 | Catalog Last Checked: January 25, 2026 at 05:24 PM -
National Park Service Unit tract polygons
Search relevance: 1.00 | Views last month: 15 | Catalog Last Checked: April 25, 2026 at 03:54 AM -
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 layers complete with...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: March 04, 2026 at 06:50 AM -
Biological indicator taxa have long been used for integrative assessments of water quality, particularly benthic invertebrate groups such as arthropods. While standardized protocols have been...
Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: May 05, 2026 at 08:18 PM -
National Park Service Unit Centroid Points.
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: April 25, 2026 at 03:54 AM -
Magnetic 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 a flight line database,...
Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: May 05, 2026 at 07:51 PM -
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 regional cartographic staff at...
Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: March 04, 2026 at 06:56 AM -
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 flight line databases,...
Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: May 05, 2026 at 07:28 PM -
This data release provides digital flight-line and gridded data for a high-resolution airborne magnetic and radiometric survey over parts of Maryland, Pennsylvania, and West Virginia. The survey...
Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: May 05, 2026 at 09:41 PM -
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 the Government...
Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: March 04, 2026 at 06:50 AM -
Biological Inventories to identify bird species in six National Capital Region Network parks (Antietam National Battlefield, Catoctin Mountain Park, Harpers Ferry National Historical Park,...
Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: March 04, 2026 at 06:52 AM -
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 Canal National Historic Park,...
Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: March 04, 2026 at 06:52 AM -
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 represent sampling sites for both...
Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: March 04, 2026 at 06:52 AM -
National Park Service unit boundaries.
Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: January 27, 2026 at 07:49 PM -
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 tables, a Map PDF...
Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: March 04, 2026 at 06:50 AM -
Inventories of macrofungal species in four National Capital Region Network parks (Antietam National Battlefield, Catoctin Mountain Park, Chesapeake and Ohio Canal National Historical Park, and...
Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: March 03, 2026 at 06:38 AM
