Montana · Jefferson County
Past Producer

Big Indian Mine

Jefferson County, Montana, United States
Gold
⌖ Show on mapUSGS source ↗
Description

James Winscott

Commodities
PrimaryGold
Commodity typeM
Deposit
Deposit sizeS
WorkingsSurface/Underground
Ore controlVertical Joints
Materials
Ore mineralsGold
GanguePyrite, Quartz, Tourmaline
Geology
Host rockQuartz Monzonite
Associated rockQuartz Monzonite · Butte Quartz Monzonite (Boulder Batholith)
StructureBoulder Batholith, Vertical Joint System; Aplite And Diorite Porphyry Dikes
AlterationTourmalinization In Fractures
Economic & production
Development statusPast Producer
Discovery year1875
Identification
Deposit ID10015880
MRDS IDDB02154
RegionNA
Data scoreB
Coordinates46.53796, -112.0231
References
MBMG BULL 16, P. 74-5, 105.USGS BULL 842, P. 210USGS BULL 57, P. 51, 100.MBMG BULL 16, P. 105