Mine detail: Horseshoe Claim

Previously called 'HorseshoeGrassely ClaimsPedro Lease'

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Location

Lat / long: 37.90432, -120.5052

Resource(M)

Tertiary: Iron, Chromium
Other material: Chromite, Olivine, Opal, Pyroxene, Serpentine

Production

Operation type: Underground
Development status: Past Producer
First production started: 1918

Geology

References

MRDSW025929
MAS61090034
DEP10141637
Reference{Deposit:: CALIFORNIA DIVISION OF MINES AND GEOLOGY BULLETIN 134,}{Deposit:: PART 3, CHAPTER 1, 1948, P. 26-27.}{Deposit:: CALIFORNIA DIVISON OF MINES AND GEOLOGY SPECIAL REPORT 41,}{Deposit:: P. 55, PLATES 2-4.}
ReporterWetzel, Nicholas