Montana · Granite County
Past Producer

N. G. Group

Granite County, Montana, United States
ManganeseSilver
⌖ Show on mapUSGS source ↗
Commodities
PrimaryManganese
SecondarySilver
Commodity typeM
Deposit
Deposit sizeS
Materials
GangueQuartz
Geology
Host rockLimestone · Hasmark Formation
StructurePhilipsburg Batholith, Philipsburg Antlcline Philipsburg Overthrust
Economic & production
Development statusPast Producer
First production1917
Last production1956
Identification
Deposit ID10012274
MRDS IDD007819
Alternate namesMountain View, Manganese Fraction
RegionNA
Data scoreC
Coordinates46.33378, -113.27231
References
USGS BULL 725, P. 173.MBMG BULL 10, P. 21.USGS BULL 1237, P. 15- 57.