Physiography and glacial geology of western Montana and adjacent areas; a study of glacial features in the intermontane valleys and the drainage area of the upper Missouri and Columbia Rivers. - Alden, William C. (William Clinton), 1871- (Washington, U.S. Govt. Print. Off., 1953)
Part of illustrative matter in pocket.
"References cited": p. 191-192.
Keywords: Geology -- Montana; Physical geography -- Montana; Paleogeography; Glaciers -- Montana