Found 15 datasets matching filters.
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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...
Search relevance: 1.00 | Views last month: 16 | Catalog Last Checked: May 05, 2026 at 09:03 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 -
Comma-separated values (.csv) file containing data related to mercury and biogeochemical parameters in surface water and aquatic sediment collected from U.S. National Parks in 2014-2015.
Search relevance: 1.00 | Views last month: 13 | Catalog Last Checked: May 05, 2026 at 10:09 PM -
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...
Search relevance: 1.00 | Views last month: 10 | Catalog Last Checked: May 05, 2026 at 08:50 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: 3 | Catalog Last Checked: March 04, 2026 at 06:50 AM -
This report contains digital data, text files describing data formats, and a report on survey procedures for aeromagnetic data collected during a survey covering the Big Bend National Park region in 2002.
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: May 05, 2026 at 09:33 PM -
This dataset details mercury (Hg) stable isotope values in dragonflies and fish tissues collected across U.S. National Parks. Dragonfly samples were collected as part of the Dragonfly Mercury...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: May 05, 2026 at 09:25 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 -
These data are spatial polygon data and remote sensing image-based classification maps of surface water and vegetation species for 2012 along the Rio Grande River in Big Bend National Park in...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: May 05, 2026 at 08:43 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: 1 | Catalog Last Checked: March 04, 2026 at 06:56 AM -
These data were converted from the originally delivered Microsoft Access PLOTs database from the Vegetation Mapping Inventory Project of Big Bend National Park. These comma-delimited data tables...
Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: January 25, 2026 at 05:29 PM -
This data set contains small-scale base GIS data layers compiled by the National Park Service Servicewide Inventory and Monitoring Program and Water Resources Division for use in a Baseline...
Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: March 04, 2026 at 06:57 AM -
These data are channel morphology survey points for long-term monitoring of the Rio Grande-Rio Bravo within Big Bend National Park and the Rio Grande Wild and Scenic River. The National Park...
Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: January 25, 2026 at 05:27 PM -
This study examined the biological response of aquatic organisms, collected in situ and from laboratory toxicity testing of water and soil to the herbicide Arsenal® primarily used to decrease the...
Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: January 25, 2026 at 05:30 PM -
National Park Service unit boundaries.
Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: January 27, 2026 at 07:49 PM
