01220cam a22002891 4500 gs 61000184 DLC 20260227111410.0 780627s1960 mtuab b 000 0 eng c gs 61000184 (OCoLC)4010961 U.S. Geol. Survey. Libr. TxEU OCoLC DLC premarc QE133 .A47 Montana Bureau of Mines and Geology. Pre-Beltian geology of the Cherry Creek and Ruby Mountains areas, southwestern Montana. Pt. 1. Geology of the Cherry Creek area, by E. Wm. Heinrich and John C. Rabbitt. Pt. 2. Geology of the Ruby Mountains, by E. Wm. Heinrich. Butte, Montana School of Mines; [for sale by Montana Bureau of Mines and Geology] 1960. iv, 40 p. illus., maps (2 fold. in pocket) diagrs., tables, 28 cm. Its Memoir no. 38 Bibliography: p. 39-40. Geology Montana Cherry Creek region. Geology Montana Ruby Range. Petrology Montana Ruby Range. Heinrich, E. William (Eberhardt William), 1918- Rabbitt, J. C. Memoir (Montana Bureau of Mines and Geology) 29534 29534