1. Geologic map showing ages and mineralization of the Quien Sabe volcanics, Mariposa Peak quadrangle, west-central California Yale Public content 1992. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; For sale by Map Distribution. English. Public. California, Diablo Range Region, Merced County, San Benito County, and Santa Clara County.