58 x 46 cm., on sheet 88 x 85 cm., folded in envelope 30 x 24 cm. Relief shown by contours and spot heights. "Contour interval 20 feet." "Base by U.S. Geological Survey, 1962, 10,000-foot grid based on Nevada coordinate system, central zone." "Geology mapped in 1962-63." Includes 2 col. cross sections, diagrammetric stratigraphic section, quadrangle location map, and text. "Prepared in cooperation with the U.S. Atomic Energy Commission." Original publisher: Interior, Geological Survey, Series: Geologic quadrangle map GQ, Scale: 1:24 000.