Montana · Granite County
Past Producer
Horton Mine
Granite County, Montana, United States
Manganese
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USGS source ↗
Commodities
Primary
Manganese
Commodity type
M
Deposit
Deposit size
S
Workings
Underground
Materials
Ore minerals
Psilomelane, Pyrolusite
Gangue
Quartz
Geology
Host rock
Limestone · Hasmark Formation
Structure
Philipsburg Batholith, Philipsburg Anticline, Philipsburg Overthrust
Alteration
Oxidation
Economic & production
Development status
Past Producer
First production
1918
Identification
Deposit ID
10019452
MRDS ID
DC10509
Alternate names
Horseshow
Region
NA
Data score
C
Coordinates
46.3335, -113.27175
References
USGS BULL 725, P. 169.USGS BULL 1237.