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State
DrainageArea NGDA
State of Oregon —
The USGS 3D Hydrography Program (3DHP) ArcGIS REST service (3DHP_all) from The National Map is the first of several data services that will be delivered by the 3D... -
Watersheds
District of Columbia —
This data set consists of geo-referenced digital data and associated attributes created in accordance with the FGDC Proposal, Version 1.0 - Federal Standards For... -
State
Major Drainage Basin Set
State of Connecticut —
See full Data Guide here.Major Drainage Basin Set: Connecticut Major Drainage Basins is 1:24,000-scale, polygon and line feature data that define Major drainage basin... -
Federal
Slope Area Index (SAI) of North Carolina
Department of the Interior —
Slope-Area Index (SAI) is used to predict erosion along a stream channel. It is a function of channel slope, and drainage area upstream raised to the exponent used in... -
Federal
Drainage-area boundaries for selected sampling stations, scale 1:100,000, Yellowstone River Basin, Montana, North Dakota, and Wyoming
Department of the Interior —
As part of the U.S. Geological Survey's National Water-Quality Assessment Program, an investigation of the Yellowstone River Basin study unit is being conducted to... -
Federal
Drainage-area boundaries for selected sampling stations, scale 1:100,000, Yellowstone River Basin, Montana, North Dakota, and Wyoming
Department of the Interior —
As part of the U.S. Geological Survey's National Water-Quality Assessment Program, an investigation of the Yellowstone River Basin study unit is being conducted to... -
State
Major Basin Polygon
State of Connecticut —
See full Data Guide here.Major Drainage Basin Set: Connecticut Major Drainage Basins is 1:24,000-scale, polygon and line feature data that define Major drainage basin... -
Federal
Watersheds for U.S Geological Survey National Stream Quality Accounting Network (NASQAN) sampling sites 1996-2000.
Department of the Interior —
A digital representation of the watersheds of 43 sites on large river systems sampled by the National Stream Quality Accounting Network (NASQAN) of the U. S.... -
MS4 Storm Sewer Outfalls
District of Columbia —
The dataset contains locations and attributes of the MS4 Storm Sewer outfalls created as part of the District MS4 Permit. GPS outfall locations were captured in... -
State
Local Basin Polygon
State of Connecticut —
See full Data Guide here. Drainage Basin Set: Connecticut Drainage Basins is 1:24,000-scale, polygon and line feature data that define natural drainage areas in... -
DC Watersheds
District of Columbia —
This dataset is a digital hydrologic unit boundary layer for the District of Columbia only - to the watershed (10-digit) 6th level at 1:24,000 scale. It is a clipped... -
State
Subregional Drainage Basin Set
State of Connecticut —
See full Data Guide here.Subregional Drainage Basic Set: Connecticut Subregional Drainage Basins is 1:24,000-scale, polygon and line feature data that define... -
State
Subregional Drainage Basin Direction
State of Connecticut —
See full Data Guide here.Subregional Drainage Basic Set: Connecticut Subregional Drainage Basins is 1:24,000-scale, polygon and line feature data that define... -
State
Major Basin Lines
State of Connecticut —
See full Data Guide here.Major Drainage Basin Set: Connecticut Major Drainage Basins is 1:24,000-scale, polygon and line feature data that define Major drainage basin... -
State
HydroLocation - Headwater, Terminus, Divergence, Confluence, Catchment Outlet NGDA
State of Oregon —
The USGS 3D Hydrography Program (3DHP) ArcGIS REST service (3DHP_all) from The National Map is the first of several data services that will be delivered by the 3D... -
Federal
Drainage Basins used for Development of the Watershed Regressions for Pesticides (WARP) Model
Department of the Interior —
This data set consists of 204 drainage basin boundaries for U.S. Geological Survey's (USGS) stream sites sampled in the National Water Quality Assessment (NAWQA)... -
Federal
Data for the report Geologic Framework and Hydrogeology of the Middle Carson River Basin, Eagle, Dayton, and Churchill Valleys, West-Central Nevada
Department of the Interior —
This USGS data release represents the data from the following publication: Maurer, D.K., 2011, Geologic framework and hydrogeology of the middle Carson River Basin,... -
Federal
Watershed Boundaries for the U.S. Geological Survey Regional Stream Quality Assessment
Department of the Interior —
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)... -
State
Local Drainage Basin Set
State of Connecticut —
See full Data Guide here. Drainage Basin Set: Connecticut Drainage Basins is 1:24,000-scale, polygon and line feature data that define natural drainage areas in... -
Federal
1:24,000-scale hydrographic areas, Walker River Basin, California and Nevada
Department of the Interior —
This dataset consists of digitized 1:24,000-scale polylines and polygons representing hydrographic areas for the Walker River basin, California and Nevada.