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). http://www.nrcs.usda.gov/wps/portal/nrcs/detail/national/water/watershed... . 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
Abstract
Research Program Name
Project website http://nhd.usgs.gov/wbd.html
Data Author USGS
Data Author Email USGS
Data Maintainer Name USGS
Data Maintainer Email USGS
Data Contact Name
Data Contact Email
Metadata Contact Name
Metadata Contact Email
Metadata Creation Date
Embargo Date
Project Status
Spatial Extent (GeoJSON)
Data Acess Restrictions