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Federal
Watershed Boundary Dataset (WBD) - USGS National Map Downloadable Data Collection NGDA recent views
Department of the Interior —
The Watershed Boundary Dataset (WBD) is a comprehensive aggregated collection of hydrologic unit data consistent with the national criteria for delineation and... -
Federal
National Hydrography Dataset (NHD) - USGS National Map Downloadable Data Collection NGDA recent views
Department of the Interior —
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's... -
Federal
Watershed Boundary Dataset; 12-Digit Watersheds Dissolved to 8-Digit Watersheds recent views
Department of the Interior —
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... -
Federal
National Hydrography Dataset Plus High Resolution (NHDPlus HR) - USGS National Map Downloadable Data Collection recent views
Department of the Interior —
The High Resolution National Hydrography Dataset Plus (NHDPlus HR) is an integrated datset of geospatial data layers, including the most current National Hydrography... -
State
Iowa Watershed Boundaries: Subbasins (HUC 08) recent views
State of Iowa —
The Watershed Boundary Dataset (WBD) defines the areal extent of surface water drainage to a point, accounting for all land and surface areas. Watershed Boundaries... -
University
New Mexico 6th Code Subwatersheds (12-digit) recent views
Earth Data Analysis Center, University of New Mexico —
This data set is a complete digital hydrologic unit boundary layer to the Subwatershed (12-digit) 6th level for the State of New Mexico. This data set consists of... -
Federal
Surface Drinking Water Importance (Feature Layer) recent views
Department of Agriculture —
Note: This is a large dataset. To download, go to�ArcGIS Open Data Set�and click the download button, and under additional resources select the shapefile or... -
Federal
Quality assessed and modified Discharge Monitoring Report (DMR) facility and outfall locations, 2007 - 2019 recent views
Department of the Interior —
Each year the U.S. Environmental Protection Agency (EPA) reports permit, location, and discharge information for facilities across the United States and its... -
Federal
Climate, Wildfire, and Erosion Data, Western US recent views
Department of the Interior —
These data were used to examine how post-fire sedimentation might change in western USA watersheds with future fire from the decade of 2001-10 through 2041-50. The... -
Federal
Regions for regional regression equations recent views
Department of the Interior —
Regional regression equations were calculated in Puerto Rico with generalized least squares techniques to estimate flood frequency statistics at ungaged locations... -
Federal
1:24,000-scale Hydrographic Areas for Humboldt River Basin, Nevada recent views
Department of the Interior —
This data set contains the topographic and administrative hydrographic area boundaries for the Humboldt River Basin at 1:24,000-scale.