1. Maps showing distribution of molybdenum, tin, boron, tungsten, and gold in samples of minus-60-mesh (0.25-MM) stream sediment and (or) nonmagnetic heavy-mineral concentrate, Walker Lake 1⁰?x 2⁰?quadrangle, California and Nevada Yale Public content 1988. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; For sale by Map Distribution. English. Public. California, Nevada, and Walker Lake Region.