Montana · Granite County
Past Producer

San Francisco Mine

Granite County, Montana, United States
GoldSilverLeadCopperZincArsenicAntimonyManganese
⌖ Show on mapUSGS source ↗
Commodities
PrimaryGold, Silver
SecondaryLead, Copper, Zinc
TertiaryArsenic, Antimony, Manganese
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Orebody formTABULAR
Materials
Ore mineralsGalena, Gold, Proustite, Sphalerite, Tetrahedrite
GangueCalcite, Pyrite, Quartz, Rhodochrosite
Geology
Host rockDiorite
Associated rockDiorite · Philipsburg Batholith
StructurePhilipsburg Batholith, Philipsburg Anticline, Philipsburg Overthrust
Economic & production
Development statusPast Producer
Production yearsTO 1907
Identification
Deposit ID10019603
MRDS IDDC10925
RegionNA
Data scoreB
Coordinates46.34156, -113.26342
References
USGS PP 78, P. 208.USGS BULL 1237, PLATE 1.EMMONS AND CALKINS, 1913, USGS PP 78.