Montana · Missoula County
Past Producer

Mammoth Mine

Missoula County, Montana, United States
GoldSilverCopperAntimony
⌖ Show on mapUSGS source ↗
Commodities
PrimaryGold, Silver
SecondaryCopper
TertiaryAntimony
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Ore controlTop Of Stock, Hasmark Formation
Materials
Ore mineralsChalcopyrite, Gold, Tetrahedrite
Geology
Host rockDiorite,Limestone · Hasmark Formation
Associated rockDiorite · Garnet Stock
StructureBearmouth Overthrust, Garnet Stock
Tectonic settingCordilleran Miogeosyncline
AlterationOxidation
Economic & production
Development statusPast Producer
Discovery year1897
Identification
Deposit ID10071374
MRDS IDW014718
RegionNA
Data scoreB
Coordinates46.84239, -113.38343
References
USGS BULL 660, P. 196-98.MBMG BULL 8, P. 11, 13, 15, 16, 26, 27.MBMG MEM 39, P. 26-28.MBMG MEM 31, P. 77-8.USGS BULL 660, MBMG MEM 39, MBMG BULL 8.