58 x 47 cm., on sheet 81 x 81 cm., folded in envelope 30 x 24 cm. Relief shown by contours and spot heights. "Geology mapped in 1962. Contours on pre-Cenozoic rocks by D. L. Healey and C. H. Miller, 1958-63." Includes text, col. cross section and quadrangle location map. "Prepared in cooperation with the U.S. Atomic Energy Commission." Original publisher: Interior, Geological Survey, Series: Geologic quadrangle map GQ, Scale: 1:24 000.

'At top of map: ' United States Department of the Interior. Geological Survey.' ' Bulletin 1021, Plate 32.' At bottom of map: 'Geology by Donald E. Hibbard and Mike S. Johnson, 1952.' 'Base from USAF Aeronautical Chart and Information Service, April 1952.' 'Interior--Geological Survey, Washington, D.C. MR-3767.' Scale 1:63,360 (W 116°10--W 115°55/N 37°15--N 36°40)
Geological Survey bulletin, 1021