USGS HUC-8 Watershed layer

This data set is a complete digital hydrologic unit boundary layer of the Subbasin (8-digit) 4th level for the entire United States. This data set consists of geo-referenced digital data and associated attributes created in accordance with the "Federal Guidelines, Requirements, and Procedures for the National Watershed Boundary Dataset; Chapter 3 of Section A, Federal Standards, Book 11, Collection and Delineation of Spatial Data; Techniques and Methods 11-A3" (04/01/2009). . Polygons are attributed with hydrologic unit codes for 4th level sub-basins, 5th level watersheds, 6th level subwatersheds, name, size, downstream hydrologic unit, type of watershed, non-contributing areas and flow modification. The data is currently updated through the USGS National Hydrography Dataset (NHD) Program and replicated to NRCS twice per year.

Data Resources

Additional Info

Field Value
Cite Project U.S Geological Survey, 2014, "USGS HUC-8 Watershed layer", 10.5203/0ynh-s873, Canadian Watershed Information Network, V1.
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Project Status
Project DOI 10.5203/0ynh-s873

Project License

License Name Creative Commons Attribution Share-Alike 4.0
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License Scheme Name SPDX

Principal Investigators

Name U.S Geological Survey
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Email None
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Affiliation (e.g Environment Canada)
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Data Curator

Type DataCurator
Data Curator Email None
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Funding References

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Publisher Canadian Watershed Information Network (CanWIN), University of Manitoba
Resource Sub-Type Online resource
Resource Category Collection
Spatial Extent (GeoJSON)