Mine detail: Hilltop Mine

Previously called 'Independence'

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Location

Lat / long:

40.41547, -116.80649

Resource(M)

Primary:	Gold, Silver
Secondary:	Copper, Lead, Zinc
Tertiary:	Bismuth, Tin
Ore:	Cassiterite, Chalcopyrite, Galena, Sphalerite
Gangue:	Calcite, Fluorite, Iron, Jasper, Quartz
Discovery year:	1906

Production

Operation type:	Unknown
Production size:	Small
Development status:	Producer
First production started:	1912

Geology

Host rock:	Quartzite
Host type:	Quartz Monzonite,Quartzite
Associated rock:	Altered Quartz Monzonite Porphyry
Associated type:	Quartz Monzonite
Structure:	Roberts Mtns. Thrust, At Depth
Alteration processes:	Chloritic, Sericitic

References

MRDS	M231404
DEP	10044080
Reference	{Deposit:: STAGER, H. K., 1977, GEOLOGY AND MINERAL DEPOSITS OF LANDER CO., NEV.; NEV. BUREAU OF MINES BULL. 88, PT II}{Deposit:: EMMONS, W. H., 1910, RECONNAISSANCE OF SOME MINING CAMPS IN NEVADA; USGS BULL. 408}{Deposit:: VANDERBURG, W. O., 1939, RECONNAISSANCE OF MINING DISTRICTS IN LANDER CO., NEV: USBM INFO. CIRC. 7043}
Reporter	La Pointe, D. D.