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Mineral resource potential map of the Blanco Mountain and Black Canyon Roadless Areas, Inyo and Mono Counties, California

January 1, 1994

On the basis of geologic, geochemical, and geophysical investigations and a survey of mines and prospects, the mineral resource potential for gold, silver, lead, zinc, tungsten, and barite of the Blanco Mountain and Black Canyon Roadless Areas is judged to be low to moderate, except for one local area that has high potential for gold and tungsten resources.

A geochemical survey detected moderately anomalous amounts of lead, copper, and zinc and less anomalous concentrations of tungsten, gold, and silver. Elements in anomalous samples were grouped as suites known to form in various ore deposits. Four element suites that may be indicative of mineralization are recognized in the White Mountains: (1) lead, zinc, and silver in carbonate rocks; (2) copper, barite, and lead in veins and replacement bodies; (3) tungsten, molybdenum, and bismuth in skarns; and (4) gold and arsenic in mineralized quartz veins. The assessment of the areas of resource potential was made in part by the application of ore deposit models to the geochemical results.

A mineral deposit survey by the U.S. Bureau of Mines indicates that there are no properties with identified mineral resources in the Blanco Mountain Roadless Area. There is one active placer claim. In the Black Canyon Roadless Area, two properties have 40,000 tons of indicated and inferred low-grade gold, silver, or lead-bearing rock. Five properties near this roadless area have 150,000 tons of indicated and inferred low-grade gold, silver, lead, zinc, or tungsten-bearing rock. About 90 percent of this tonnage is estimated to occur at the Mirage-Mariposa and the Hope mines.

The roadless areas have no known resource potential for geothermal energy, coal, oil, or gas.

Citation Information

Publication Year 1983
Title Mineral resource potential map of the Blanco Mountain and Black Canyon Roadless Areas, Inyo and Mono Counties, California
DOI 10.3133/mf1361C
Authors Michael F. Diggles, Richard J. Blakely, Richard L. Rains, Steven W. Schmauch
Publication Type Report
Publication Subtype USGS Numbered Series
Series Title Miscellaneous Field Studies Map
Series Number 1361
Index ID mf1361C
Record Source USGS Publications Warehouse
USGS Organization