Abstract This collection contains several geological surveys that took place in the Jardine-Crevasse Mountain District and Mineral Hill area. Mineral Hill Mine, located just north of Yellowstone, was mined primarily for gold and arsenic from 1923 to 1948, when operations stopped until 1988. Between 1988 and 1996, TVX Gold and other companies conducted various development and drilling projects at the mine. Since 1996, the mine has been under “maintenance status.” This collection includes geological...

Abstract Helena, Montana, mining and geological engineer Leverett Ropes (1868-1953) was employed by various mining firms, by the federal government, and as a private consultant. This collection contains papers (ca. 1888-1952) concerning Ropes' mining engineering and geology consulting work and his interest in a variety of political issues. The general correspondence (1928-1952) concerns mines in Lewis and Clark, Jefferson, and Broadwater counties, Fort Peck Dam, his dispute with federal agencies over...