Donald Plouff 1992 <p>This aeromagnetic map is part of a folio of maps of the Tonopah 1 degree by 2 degrees quadrangle, Nevada, Prepared under the Conterminous United States Mineral Assessment Program. Each product is designated by a different letter symbol, starting with A, in the U.S. Geological Survey Miscellaneous Field Studies map series MF-1877 folio. The quadrangle encompasses an area of about 19,500 km² in the central part of Nevada.</p> application/pdf 10.3133/mf1877C en U.S. Geological Survey Aeromagnetic map of the Tonopah 1 degree by 2 degrees Quadrangle, central Nevada reports