Mine detail: Brownstone Mine

Previously called 'BrownstoneBrownstone #1 and 2John Muir Wilderness'

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Location

Lat / long: 37.35244, -118.70765

Resource(M)

Primary: Tungsten

Production

Operation type: Underground
Development status: Past Producer

Geology

References

MRDSD000852
MAS60270022
DEP10212537
Reference{Deposit:: JOHNSON, F.L., AND OTHERS, 1985, MINERAL RESOURCES OF THE}{Deposit:: JOHN MUIR WILDERNESS, FRESNO, INYO, MADERA, AND MONO}{Deposit:: COUNTIES, CA, U.S. BUREAU OF MINES, UNPUBLISHED, MLA}{Deposit:: FILE REPORT, PLATE 1, MAP NO. 37.}
ReporterJohnson