Geology of the southern Elkhorn Mountains, Jefferson and Broadwater Counties, Montana /

By Klepper, Montis Ruhl,.
Washington : U.S. Govt. Print. Off., 1957 .
82 p. : , Part of illustrative matter folded in pocket. 29 cm..

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Geology and igneous petrology of the northern Elkhorn Mountains, Jefferson and Broadwater Counties, Montana,

By Smedes, Harry Wynn,.
Washington, U.S. Govt. Print. Off., 1966 .
v, 116 p. , Part of illustrative matter in pocket. | "Prepared partly on behalf of the U.S. Atomic Energy Commission." 29 cm..

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Geology of the southern Elkhorn Mountains, Jefferson and Broadwater Counties, Montana /

Geology and igneous petrology of the northern Elkhorn Mountains, Jefferson and Broadwater Counties, Montana,