01183cam a22002651 4500 gs 43000050 DLC 20260227111349.0 780227s1943 xx 000 0 eng c gs 43000050 (OCoLC)3674177 U.S. Geol. survey. Library OT DLC premarc TN867 .M5 1943 665.5058 Mineral resources survey. Directory of Montana oil and gas industry, compiled by Work projects administration, Mineral resources survey (O.P. 365-1-91-4 W.P. 3668) Carl J. Trauerman, former supervisor, Roy H. Earhart, state supervisor, Eggleston B. Emrick, asst. state supervisor. Butte, Mont., Montana school of mines, 1943. v, 291 p. incl. tables. 3 pl. (incl. map, 1 fold.) 28 cm. Montana. State bureau of mines and geology. Memoir no. 22 At head of title: State of Montana. Bureau of mines and geology, Francis A. Thomson, director ... Reproduced from type-written copy. Petroleum industry and trade Montana Directories. Natural gas Montana Directories. 27896 27896