01143cam a22002771 4500 gs 29000061 DLC 20260227111333.0 850801s1928 mtuabf b 000 0 eng c gs 29000061 (OCoLC)12332051 U.S. Geol. survey. Library CHS DLC premarc TN872.M9 P4 1928 Perry, Eugene S. (Eugene Sheridan), 1892- The Kevin-Sunburst and other oil and gas fields of the Sweetgrass arch, by Eugene S. Perry. Butte, Mont., Montana State School of Mines, 1928. 3 p. l., 41 numb. l. front., plates, 4 maps (3 fold.) tab., diagr. 27 cm. Montana. State bureau of mines and geology. Memoir no. 1 At head of title: State of Montana. M.A. Brannon, chancellor, the University of Montana. State bureau of mines and metallurgy. Francis A. Thomson, director. Reproduced from type-written copy. Bibliography: numb. 1. 39-41. Petroleum Montana. Natural gas Montana. Petroleum Geology Montana. 26698 26698