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National Park Service Unit Centroid Points.
Search relevance: 1.00 | Views last month: 30 | Catalog Last Checked: September 12, 2026 at 07:47 PM -
National Park Service Unit tract polygons
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National Park Service unit boundaries.
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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....
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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 lentic (wetland) and...
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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...
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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...
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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 layers complete with...
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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...
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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...
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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,...
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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...
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The data presented here are blacklegged tick nymph densities, white-tailed deer densities, and Borrelia burgdorferi (causative agent of Lyme disease) prevalences for eight national parks in the...
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The Digital Geologic Map of Harpers Ferry National Historical Park and Vicinity, Maryland and West Virginia is composed of GIS data layers complete with ArcMap 9.3 layer (.LYR) files, two...
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