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MIDDLE MOUNTAIN-TOBACCO ROOT ROADLESS AREA, MONTANA.

January 1, 1984

A mineral-resource survey of the northern part of the Tobacco Root Mountains, Montana determined that the area included in or enclosed by the Middle Mountain-Tobacco Root Roadless Area contains serveral areas of probable or substantiated mineral-resource potential. Most of the mineralized areas are located in or adjacent to intrusive rocks of Late Cretaceous age. Mineral resources are probably of three types: disseminated and stockwork copper and molybdenum in porphyry-type deposits; gold-silver-quartz veins; and gold-bearing silicified zones. No energy resources were identified in this study.

Publication Year 1984
Title MIDDLE MOUNTAIN-TOBACCO ROOT ROADLESS AREA, MONTANA.
Authors J. Michael O'Neill, Eric E. Cather
Publication Type Article
Publication Subtype Journal Article
Series Title Geological Survey Professional Paper (United States)
Index ID 70012849
Record Source USGS Publications Warehouse