Search datasets
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This dataset is a complete digital hydrologic unit boundary layer to the subwatershed (12-digit) 6th level at 1:24,000 scale. This data set consists of geo-referenced digital data and associated...
Search relevance: 90.46 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 07:03 PM -
This layer depicts the conglomeration of the 4 layers used for TMDLs. It contains TMDL Subsheds, Direct Drain Overland (not piped), Direct Drain Sewersheds (piped), and Combined Sewer (CSS)...
Search relevance: 81.61 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 07:03 PM -
Between May 2022 and April 2023, 57 passive seismic measurements were collected in select subwatersheds and arroyos near Los Planes, Mexico. The horizontal‑to‑vertical spectral ratio (HVSR) method...
Search relevance: 65.02 | Views last month: 0 | Catalog Last Checked: September 10, 2026 at 10:22 PM -
This dataset contains twelve-digit hydrologic subwatershed units aggregated from the NHDPlus v21+AK Beta State Catchment Fabric. These units express the Catchment Crosswalk logic used to assign...
Search relevance: 51.35 | Views last month: 3 | Catalog Last Checked: August 03, 2026 at 05:00 AM -
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: 46.79 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 07:16 PM -
This posting contains the source climate data used to run the SWAT model in the Tuckahoe and Greensboro subwatersheds of the Choptank River watershed, Maryland.
Search relevance: 43.33 | Views last month: 0 | Catalog Last Checked: September 10, 2026 at 08:16 PM -
This metadata record document contains 7 tables used to assess factors influencing long-term water quality changes in the Gwynns Falls, Baltimore, MD, 1998-2016. Included are daily discharge...
Search relevance: 40.29 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 07:46 PM -
This posting contains the source crop rotation data used to run the SWAT model in the Tuckahoe and Greensboro subwatersheds of the Choptank River watershed, Maryland. The dataset consists of the...
Search relevance: 39.81 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 10:23 PM -
This data set includes paired air and water temperature data from 204 sites throughout the southern Appalachian region of the United States. Sites were located in randomly selected subwatersheds...
Search relevance: 39.66 | Views last month: 0 | Catalog Last Checked: October 12, 2026 at 05:02 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: 38.55 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 07:16 PM -
During December 2022 and April 2023, the U.S. Geological Survey, in cooperation with U.S. Water Partnership, collected ground-penetrating radar (GPR) data in select small subwatersheds and arroyos...
Search relevance: 34.91 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 10:43 PM -
This data set is a digital hydrologic unit boundary layer that is at the Subwatershed (12-digit) level. The original data set was developed by delineating the boundary lines on base USGS 1:24000...
Search relevance: 34.59 | Views last month: 0 | Catalog Last Checked: September 10, 2026 at 06:40 PM -
This data set is a digital hydrologic unit boundary layer that is at the Subwatershed (12-digit) level. The original data set was developed by delineating the boundary lines on base USGS 1:24000...
Search relevance: 34.53 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 06:39 PM -
This data set is a digital hydrologic unit boundary layer that is at the Subwatershed (12-digit) level. The original data set was developed by delineating the boundary lines on base USGS 1:24000...
Search relevance: 34.43 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 06:39 PM -
This file contains data associated with the paper "Our national nutrient reduction needs: Applying a conservation prioritization framework to US agricultural lands" by Kirk et al. This analysis...
Search relevance: 34.34 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 07:00 PM -
The dataset contains calculated results of annual and seasonal input of nitrogen from seven major sources in the Calapooia River Watershed and its subwatersheds. It also contains annual and...
Search relevance: 33.70 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 06:55 PM -
This data release contains the analytical results and the evaluated source data files of a geospatial analysis for identifying areas in Alaska that may have potential for sediment-hosted Pb-Zn...
Search relevance: 32.22 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 10:17 PM -
This data set is a complete digital hydrologic unit boundary layer to the Subwatershed (12-digit) 6th level for the entire United States. This data set consists of geo-referenced digital data and...
Search relevance: 31.49 | Views last month: 3 | Catalog Last Checked: August 03, 2026 at 04:39 AM -
This data release contains the analytical results and evaluated source data files of geospatial analyses for identifying areas in Alaska that may be prospective for different types of lode gold...
Search relevance: 31.26 | Views last month: 1 | Catalog Last Checked: October 31, 2026 at 07:47 AM -
Compressed file SedPbZn_Results_gdb.zip contains the analytical results of a geospatial analysis for identifying areas in Alaska that may have potential for sediment-hosted Pb-Zn (lead-zinc)...
Search relevance: 30.42 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 10:36 PM
