Hydrogeology of Nevada
This data set consists of hydrogeology for the State of Nevada.  Consolidated rocks and unconsolidated 
sediments are the two major hydrogeologic units.  Consolidated rocks are subdivided into 8 hydrogeologic 
units: (1) carbonate rocks, Quaternary to Tertiary-age; (2) basaltic, (3) rhyolitic, and (4) andesitic …