Preliminary digital geologic maps of the Mariposa, Kingman, Trona, and Death Valley Sheets, California

摘要

Parts of four 1:250,000-scale geologic maps by the California Department of Natural Resources, Division of Mines and Geology have been digitized for use in hydrogeologic characterization. The digitized data include geologic unit boundaries, fault traces, and identity of geologic units. The procedure involves transferring hard-copy data into digital format by scanning manuscript maps, manipulating the digital map data, and outputting the data. Most of the work was done using Environmental Systems Research Institute's ARC/INFO software.