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Mine detail: Horsefly Mine
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North America
United States
Montana
Lewis and Clark
Previously called 'Horsefly Adit'
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Location
Lat / long:
46.45879, -112.2106
Resource(M)
Tertiary:
Uranium
Gangue:
Pyrite, Quartz
Orebody form:
BANDS, PODS
Production
Operation type:
Unknown
Production size:
None
Development status:
Occurrence
Geology
Host type:
Quartz Monzonite
Associated rock:
Butte Quartz Monzonite (Boulder Batholith)
Associated type:
Quartz Monzonite
Structure:
Boulder Batholith
Alteration processes:
Intensely Altered Quartz Monzonite
References
MRDS
DC09410
DEP
10019296
Reference
{Deposit:: USGS PP 428, P. 55, 61, PL. 1.}{Deposit:: USGS MAP MR-21, P. 12.}
Reporter
Unknown, Wise, Kristine K. (Elliott, James E.)