Mine detail: Iron Mountain Mine

Previously called ''

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Location

Lat / long:

40.67541, -122.52777

Resource(M)

Primary:	Copper, Zinc
Secondary:	Gold, Platinum, Silver, Iron
Ore:	Antlerite, Chalcocite, Chalcopyrite, Covellite, Galena, Greenockite, Hematite, Ilmenite, Magnetite, Malachite, Pyrite, Pyrrhotite, Sphalerite, Sulfur
Gangue:	Calcite, Quartz
Orebody form:	LENTICULAR
Discovery year:	1865

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
Production years:	1897-1919, 1925, 1928-1930, 1943-1947
First production started:	1897
Last production ended:	1962

Geology

Host rock:	Balaklala Rhyolite
Host type:	Rhyolite
Associated type:	Shale
Structure:	Folds, Major Post-Mineral Faults Are Scott, Camden, And J Faults; The Camden Also Had Premineral Movement. Scott Fault Zone Is 3-5 Ft Wide With Many Anastomosing Slickensides And Dark-Gray To White Gouge. Scott Is A Normal Fault, Dipping 50ne, With 250 Ft Dip-Slip Displacement. Camden Fault Zone Is 50 Ft Wide At 2,600 Ft Level.
Tectonic:	Island Arc Within Klamath Mountains Accreted Terrane
Alteration processes:	Hydrothermal Pyritization, Silicification

References

MRDS	W025295
DEP	10077593
Reference	{Deposit:: KINKEL, A.R., HALL, W.E., AND ALBERS, J.P., 1956, GEOLOGY AND BASE-METAL DEPOSITS OF WEST SHASTA COPPER-ZINC DISTRICT, SHASTA COUNTY, CALIFORNIA: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 285, P. 117-129.}{Deposit:: EILERS, A., 1913, RARE METALS IN BLISTER COPPER: AMERICAN INSTITUTE OF MINING ENGINEERS TRANSACTIONS, V. 47, P. 217-218.}{Deposit:: NOTES PROVIDED FOR SOCIETY OF ECONOMIC GEOLOGISTS KLAMATH MOUNTAINS FIELD TRIP, OCTOBER 7-13, 1984.}{Deposit:: KINKEL, A.R., AND ALBERS, J.P., 1951, GEOLOGY OF THE MASSIVE SULFIDE DEPOSITS AT IRON MOUNTAIN, SHASTA COUNTY, CALIFORNIA: CALIFORNIA DIVISION OF MINES SPECIAL REPORT 14, 19 P.}{Deposit:: CALIFORNIA GEOLOGY, 1986, MINERAL INDUSTRY OF CALIFORNIA, 1985: CALIFORNIA GEOLOGY, V. 39, P. 93.}{Production:: KINKEL AND OTHERS, 1956, P. 118; SEG FIELD TRIP NOTES}
Reporter	Peterson, Jocelyn A. (Mosier, Dan), Fraticelli, L. A. (Albers, J.)