Skip to main content
U.S. flag

An official website of the United States government

SAPPHIRE WILDERNESS STUDY AREA AND CONTIGUOUS ROADLESS AREAS, MONTANA.

January 1, 1984

Geologic and mineral studies located sulfide-bearing quartz veins with demonstrated metallic mineral resources in granitic and metasedimentary rocks in several parts of the Sapphire Wilderness Study Area and contiguous roadless areas, Montana. Mines and prospects contain demonstrated resources of gold, silver, lead, copper, and zinc. Gold-bearing placers occur downstream from each of these vein occurrences; most of the gold placers have a probable mineral-resource potential. A replacement body of sulfide minerals is present at the Senate mine adjacent to the Sapphire Wilderness Study Area. Around the Senate mine is an area of probable mineral-resource potential that extends into the study area. There is little promise for the occurrence of energy resources in the study area.

Publication Year 1984
Title SAPPHIRE WILDERNESS STUDY AREA AND CONTIGUOUS ROADLESS AREAS, MONTANA.
Authors C. A. Wallace, D'Arcy P. Bannister
Publication Type Article
Publication Subtype Journal Article
Series Title Geological Survey Professional Paper (United States)
Index ID 70013443
Record Source USGS Publications Warehouse