Mine detail: Bear Creek Mine

Previously called 'Primos No. 4, MS 19384Vanadis No. 6,Ms 16864Primos No. 3, MS 19363Bear Creek GroupPatented Claims: Vanadis No. 4, MS 16864Vanadis No.5, MS 16864Primos A, MS 19304Primos No. 1, MS 19305Primos No. 2, MS 19327'

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Location

Lat / long:

37.93444, -107.97676

Resource(M)

Primary:	Vanadium, Uranium
Tertiary:	Lead, Selenium
Gangue:	Galena
Discovery year:	1903

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
First production started:	1910
Last production ended:	1957

Geology

Host rock:	Entrada Sandstone
Host type:	Sandstone
Associated rock:	Rhyolite
Associated type:	Rhyolite
Structure:	Paradox Basin, Uncompahgre Uplift, San Juan Volcanic Field, San Miguel Mtns, Placerville Anticline, Frazier Fault, Ross Graben
Tectonic:	Colorado Platform

References

MRDS	D010923
DEP	10014241
Reference	{Deposit:: FISCHER, R.P., AND OTHERS, 1947, VANADIUM DEPOSITS NEAR PLACERVILLE, SAN MIGUEL COUNTY, COLORADO: COLORADO SCI. SOC. PROC., V. 15, NO. 3, P. 117-146.}{Deposit:: BUSH, A.L., AND OTHERS, 1961, PRELIMINARY GEOLOGIC MAP OF THE GRAY HEAD QUADRANGLE, SAN MIGUEL COUNTY, COLORADO: USGS MAP MF-176.}{Deposit:: NELSON-MOORE, J.L., AND OTHERS, 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULL. 40, P. 405.}{Deposit:: COLORADO DIV. MINES INF. REPTS. AND ANNUAL OPERATOR REPTS.}{Deposit:: BLM MINERAL SURVEYS MS 16864, 19304, 19305, 19327, 19363, 19384}{Deposit:: COLEMAN, R.G., AND DELEVAUX, MARYSE, 1957, OCCURRENCE OF SELENIUM IN SULFIDES FROM SOME SEDIMENTARY ROCKS OF THE WESTERN UNITED STATES: ECON. GEOLOGY, V. 52, P. 499-527.}{Production:: FISCHER AND OTHERS, 1947, P. 133; COLORADO DIV. MINES ANNUAL OPERATOR REPTS,; NELSON-MOORE AND OTHERS, 1978, P. 405.}
Reporter	Schwochow, Stephen D.