58 x 47 cm., on sheet 74 x 81 cm., folded in envelope 30 x 24 cm. Relief shown by contours and spot heights. "Geology mapped in 1984-85." Includes text, bibliography, and location maps. "Prepared in cooperation with the U. S. Deparment of Energy." "Base from U. S. Geological Survey, 1961. Photorevised 1983. 10,0000-foot grid ticks based on Nevada coordinate system, central zone. 1000-meter Universal Transverse Mercator grid ticks, zone 11, shown in blue." Original publisher: U. S. Geological Survey, Series: Miscellaneous investigations series map I, Scale: 1:24 000.
"Between 1970 and 2010, Southern Nevada’s population increased seven-fold. The urban skyline changed dramatically, while dense suburban tracts pushed at the edges of the desert. The UNLV University Libraries Special Collections and Archives launched the Building Las Vegas collecting initiative in 2016 to collect and preserve evidence about this dramatic growth.