Subset of 8-digit Hydrologic Unit Code (HUC) watershed shapefile for the greater Central Valley, California  - Data
This subset of the USGS Water Boundary Dataset contains the polygons of the 50 8-digit Hydrologic Units that comprise the greater Central Valley study site.  The Watershed Boundary Dataset is a comprehensive set of digital spatial data that represents the surface drainages areas of the United States. The information …