Flow system boundary by D'Agnese and others (1997) for the Death Valley regional ground-water flow system study, Nevada and California
This digital data set defines the flow-system boundary encompassing the regional ground-water flow model 
by D'Agnese and others (1997). The boundary encompasses an approximately 50,000 square-kilometer 
region of southern Nevada and California, defined as the Death Valley region by Bedinger and others (1989; 
see …