The Horseshoe Claim is a gold mine located in Jefferson county, Montana.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
Satelite View
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Horseshoe Claim MRDS details
Site Name
Primary: Horseshoe Claim
Commodity
Primary: Gold
Location
State: Montana
County: Jefferson
District: Colorado (Corbin-Wickes) District
Land Status
Not available
Holdings
Not available
Workings
Type: Underground
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Mineral Deposit Model
Not available
Orebody
Form: IRREGULAR
Structure
Type: R
Description: Boulder Batholith
Type: L
Description: Dacite Dike Intrusions
Alterations
Alteration Type: L
Alteration Text: Tourmalinization, Pyritization, Sericitization
Rocks
Name: Andesite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous
Name: Andesite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Analytical Data
Not available
Materials
Ore: Gold
Gangue: Tourmaline
Gangue: Gypsum
Gangue: Pyrite
Comments
Comment (Geology): ANDESITE PERMEATED WITH GYPSUM CRYSTALS DUE TO DOWNWARD MOVING SULFATE SOLUTIONS. DACITE DIKES NON-MINERALIZED AND RELATIVELY UNALTERED. PYRITE WAS INTRODUCED AFTER THE INTRUSION OF APLITE AND BEFORE THE INTRUSION OF DACITE.
Comment (Workings): TUNNEL, DRIFTS
Comment (Location): SW SLOPE OF GREGORY MT.
References
Reference (Deposit): MBMG BULL 16, P. 51.
Reference (Deposit): USGS BULL 842, P. 245.
Reference (Deposit): USGS BULL 527, P. 117-18.
Principal Gold Districts of Montana
In Montana, 54 mining districts have each have produced more than 10,000 ounces of gold. The largest producers are Butte, Helena, Marysville, and Virginia City, each having produced more than one million ounces. Twenty seven other districts are each credited with between 100,000 and one million ounces of gold production. Read more: Principal Gold Districts of Montana.
