01037cam a22002651 4500 gs 45000015 DLC 20260227111350.0 770708s1945 nvua 000 0 eng c gs 45000015 (OCoLC)3101704 U.S. Geol. survey. Library TxEU DLC premarc QE138.L5 H8 Humphrey, Fred L. (Fred La Salle), 1909- Geology of the Groom district, Lincoln county, Nevada, by Fred L. Humphrey. [Reno] Nevada state Bureau of mines and the Mackay school of mines, 1945. 53 p. illus., maps, diagrs, 23 cm. University of Nevada. Bulletin, vol. XXXIX, no. 5, June 1945. Geology and mining series no. 42 Part of maps and diagrams folded in pocket. Geology Nevada Lincoln County. Mines and mineral resources Nevada Lincoln County. Nevada Bureau of Mines. University of Nevada. Mackay School of Mines. 28014 28014