Extent of Corcoran Clay modified from Page (1986) for the Central Valley Hydrologic Model (CVHM)
This digital dataset defines the areal extent of the Corcoran Clay Member of the Tulare Formation. 
The complex hydrologic system of the Central Valley is simulated using the USGS numerical 
modeling code MODFLOW-FMP (Schmid and others, 2006b).  This simulation is referred to 
here as the Central Valley Hydrologic …