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National Park Service Unit Centroid Points.
Search relevance: 1.00 | Views last month: 25 | Catalog Last Checked: August 01, 2026 at 04:09 AM -
National Park Service unit boundaries.
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National Park Service Unit tract polygons
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Comma-separated values (.csv) files containing data related to a National-scale assessment of mercury bioaccumulation in the US National Parks using dragonfly larvae as biosentinels through a...
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The Geologic-GIS Map of Saint Croix National Scenic Riverway and Vicinity, Wisconsin and Minnesota, adapted from a Minnesota Geological Survey County Atlas Series map by Bauer, Emily J., Chandler,...
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Comma-separated values (.csv) file containing data related to mercury concentrations in dragonfly samples from U.S. National Parks, Protected Places, and other federal lands collected as part of...
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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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Benthic macroinvertebrates have long been used as an indicator of water quality impairment in streams and rivers. Indices of Biotic Integrity (IBI) calculated from macroinvertebrate diversity and...
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The geodatabase contains 13 relate tables that together provide updated and synchronized classifications to an existing vegetation map layer for each of the nine park units in the Great Lakes...
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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...
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