01100cam a22002771 4500 gs 33000410 DLC 20260227111338.0 780308s1933 xx 000 0 eng c gs 33000410 (OCoLC)3697284 Library, U.S. Geological Survey OT DLC premarc QE134.M25 A5 1933 Montana Bureau of Mines and Geology. A geological reconnaissance of the Tobacco Root mountains, Madison county, Montana. Butte, Mont., Montana school of mines, 1933. ii numb. l., 57 p. incl. tables. illus., 5 pl. (incl. fold. map, diagrs.) 28 cm. Montana. Bureau of mines and geology. Memoir no. 9 pt. 1. Areal geology, by Wilfred Tansley and P. A. Schafer.--pt. 2. Ore deposits, by L. H. Hart. Geology Montana Madison County. Tobacco Root Mountains (Mont.) Tansley, Wilfred, 1898- Schafer, Paul A. (Paul Abbott), 1901- Hart, Lyman H. (Lyman Herbert), 1900- 27055 27055