Search datasets
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This product contains 1,297 watershed boundaries for water quality study sites of the U.S. Geological Survey (USGS) National Water Quality Program (NWQP) Surface Water Trends project. These...
Search relevance: 141.03 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 08:33 PM -
This dataset consists of the individual watersheds/subwatersheds that contain water features that flow or contribute to those that flow directly into SECN parks. The watersheds/subwatersheds are...
Search relevance: 126.26 | Views last month: 0 | Catalog Last Checked: November 11, 2026 at 03:02 AM -
The National Water Quality Network (NWQN) for Rivers and Streams includes 113 surface-water river and stream sites monitored by the U.S. Geological Survey (USGS) National Water Quality Program...
Search relevance: 118.23 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 08:39 PM -
The U.S. Geological Survey (USGS), in cooperation with the Vermont Agency of Transportation (VTrans), derived watershed boundaries for the State of Vermont at the 1-meter resolution using lidar...
Search relevance: 113.99 | Views last month: 0 | Catalog Last Checked: October 01, 2026 at 02:04 AM -
This metadata report documents a shapefile of watershed boundaries for 84 selected United States Geological Survey (USGS) water quality stations that are part of the Chesapeake Bay non-tidal network (NTN).
Search relevance: 113.44 | Views last month: 11 | Catalog Last Checked: September 10, 2026 at 09:56 PM -
Stormwater Action Monitoring (SAM) is a collaborative monitoring program between western Washington municipal stormwater permittees, state and federal agencies. SAM’s role is to use the results...
Search relevance: 107.55 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 09:07 PM -
In 2015, the second of several Regional Stream Quality Assessments (RSQA) was done in the southeastern United States. The Southeast Stream Quality Assessment (SESQA) was a study by the U.S....
Search relevance: 102.00 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 09:10 PM -
In 2013, the first of several Regional Stream Quality Assessments (RSQA) was done in the Midwest United States. The Midwest Stream Quality Assessment (MSQA) was a collaborative study by the U.S....
Search relevance: 100.67 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 10:10 PM -
In 2013, the Regional Stream Quality Assessment (RSQA) study was started as part of the U.S. Geological Survey (USGS) National Water Quality Assessment (NAWQA) project. One of the objectives of...
Search relevance: 97.20 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 10:25 PM -
We developed this spatial database of historic and current floodplains to analyze trends in vegetation conditions, identify areas more at risk of degradation, and assess the relationship between...
Search relevance: 86.81 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 09:22 PM -
This is a Child Item for the Parent data release, Mapping Riparian Vegetation Response to Climate Change on the San Carlos Apache Reservation and Upper Gila River Watershed to Inform Restoration...
Search relevance: 80.32 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 10:11 PM -
This dataset is the digital hydrologic unit boundary layer for the 8-digit subwatershed boundaries for the conterminous United States. This dataset is intended to be used with the following two...
Search relevance: 73.37 | Views last month: 5 | Catalog Last Checked: September 10, 2026 at 08:00 PM -
The Watershed Boundary Dataset (WBD) is a comprehensive aggregated collection of hydrologic unit data consistent with the national criteria for delineation and resolution. It defines the areal...
Search relevance: 69.24 | Views last month: 84 | Catalog Last Checked: November 01, 2026 at 08:39 AM -
Population growth in New Hampshire’s coastal communities is straining municipal stormwater and wastewater infrastructure and placing water quality and public health at risk. At the same time,...
Search relevance: 68.30 | Views last month: 5 | Catalog Last Checked: August 02, 2026 at 11:44 PM -
** Dataset containing HUC12 watershed boundaries that are within or intersect the boundary of a standard park AOA. ** The Watershed Boundary Dataset (WBD) is a comprehensive aggregated collection...
Search relevance: 65.56 | Views last month: 1 | Catalog Last Checked: November 11, 2026 at 03:11 AM -
Three different CMIP6-LOCA2 based climate projection data sets are spatially averaged over the Watershed Boundary Dataset (WBD) using HU8 and HU10 hydrologic units for the contiguous United States...
Search relevance: 62.61 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 07:46 PM -
This dataset contains lake watershed shapes depicting the total drainage areas for 20 terminal and/or saline lakes in the Great Basin, USA. The associated data release for the lake boundaries is...
Search relevance: 60.50 | Views last month: 0 | Catalog Last Checked: October 08, 2026 at 03:55 AM -
This dataset contains custom drainage basin polygons that are composed of the various watersheds (HUC-10) or subwatersheds (HUC-12) that contain water features that flow or contribute to those...
Search relevance: 60.29 | Views last month: 1 | Catalog Last Checked: November 11, 2026 at 03:02 AM
