Mine detail: Lowell Hill District

Previously called ''

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Location

Lat / long:

39.25869, -120.77403

Resource(M)

Primary:	Gold
Secondary:	Platinum, Silver
Ore:	Gold
Gangue:	Quartz, Magnetite, Ilmenite, Zircon, Pyrite, Amphibole, Epidote, Chlorite, Siderite
Orebody form:	Irregular
Discovery year:	1850

Production

Operation type:	Surface-Underground
Deposit type:	Stream placer
Development status:	Past Producer

Geology

Host type:	Sand and Gravel
Structure:	Melones Fault Zone, Foresthill Fault, Melones Fault Zone
Tectonic:	Magmatic arc

References

DEP	10310640
Reference	{Deposit:: Clark, W.B., 1970, Gold districts of California: California Division of Mines and Geology Bulletin 193, p. 87-88.}{Deposit:: Lindgren, W., 1900, Colfax Folio: U.S. Geological Survey Atlas of the U.S., Folio 66, 10 p.}{Deposit:: Lindgren, W., 1911, Tertiary gravels of the Sierra Nevada: U.S. Geological Survey Professional Paper 73, p. 146-147.}{Deposit:: MacBoyle, E., 1919, Nevada County: Lowell Hill mining district: California State Mining Bureau Report 16, p. 30-33.}{Deposit:: Saucedo, G. J. and Wagner, D. L., 1992, Geologic map of the Chico Quadrangle: California Division of Mines and Geology Regional Map Series Map No. 7A, scale 1:250,000.}{Deposit:: Yeend, W.E., 1974, Gold-bearing gravel of the ancestral Yuba River, Sierra Nevada, California: U.S. Geological Survey Professional Paper 772, 44 p.}
Reporter	Downey, Cameron (Higgins, Chris, T.), Schruben, Paul G.