Mine detail: Big Lead Mine

Previously called ''

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Location

Lat / long:

45.35678, -114.28033

Resource(M)

Primary:	Gold
Tertiary:	Lead
Ore:	Galena
Gangue:	Biotite, Feldspar, Magnetite, Muscovite, Pyrite, Quartz
Discovery year:	1886

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer

Geology

Host rock:	Belt Supergroup
Host type:	Granite
Associated rock:	Gneissic Granite;Granite Porphyry Dikes
Associated type:	Granite
Structure:	Fissures
Alteration processes:	Oxidation, Fe Stains, Silicification, Sericitization, Leaching

References

MRDS	W013498
DEP	10105646
Reference	{Deposit:: UMPLEBY, J.B., 1913, GEOLOGY AND ORE DEPOSITS OF LEMHI COUNTY, IDAHO: USGS BULL. 528, 182 P.}{Deposit:: BELL, R.N., 1907, EIGHTH ANNUAL REPORT OF THE MINING INDUSTRY OF IDAHO FOR THE YEAR 1906.}{Deposit:: GRAY, F.A., 1927, ORE DEPOSITS OF THE MINERAL HILL DISTRICT, LEMHI COUNTY, IDAHO: MINNEAPOLIS, MINNESOTA, UNIV. OF MINNESOTA, PHD THESIS}{Deposit:: 1907 COMPILE STATE MINE INSPECTO * REPORT FOR 1906}{Deposit:: 1913 GEOLMAP UMPLEBY, J.B., BULL. 528}{Production:: UMPLEBY, J.B., 1913, USGS BULL. 528}
Reporter	Siefken, Robert R., Siefken, Robert R. (Miller, Pat)