Commodities
PrimaryGold, Silver, Lead
SecondaryZinc, Copper
TertiaryNickel, Arsenic, Antimony
Commodity typeM
Deposit
Deposit sizeS
WorkingsSurface/Underground
Orebody formIRREGULAR
Ore controlOre Confined To Brecciated Shear Zone
Materials
Ore mineralsChalcopyrite, Galena, Gold, Lead, Sphalerite, Tetrahedrite
GanguePyrite, Quartz
Other materialsBoulangerite, Bournonite, Millerite
Geology
Host rockRhyolite
Associated rockTuff,Andesite · Elkhorn Mountain Volcanics
StructureBoulder Batholith
Tectonic settingSouth Of Montana Lineament
AlterationSilicification, Argillization, Minor Sericitization
Economic & production
Development statusPast Producer
First production1888
Discovery year1887
Identification
Deposit ID10071874
MRDS IDW015561
RegionNA
Data scoreB
Coordinates46.38712, -112.57867
References
MBMG BULL 30, P. 34MBMG BULL 109, P. 17MBMG MEM NO 34, P. 16, 17MBMG BULL 98, P. 23, 59USGS BULL 842, P. 280, 281MCCLERNAN, H. G., 1976, METALLIC MINERAL DEPOSITS OF POWELL CO., MONTANA, USGS BULL 842, P. 280.