Mineral resources of the Black Rock Wilderness study area, Graham County, Arizona
By: by Frank S. Simons ... [et al.].
Contributors: Simons, Frank S. 1917-
Series: Mineral resources of wilderness study areas--southeastern Arizona -- ch. C; U.S. Geological Survey bulletin -- 1703; U.S. Geological Survey bulletin -- 1703-C
Publisher: U.S. Geological Survey
Place of publication: Denver, Colo
Subjects: Geology -- Arizona -- Black Rock Wilderness.; Mines and mineral resources -- Arizona -- Black Rock Wilderness.; Black Rock Wilderness (Ariz.)
Notes: Bibliography: p. 9