The Whitlatch-Union Mine is a gold mine located in Lewis and Clark 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.
Whitlatch-Union Mine MRDS details
Site Name
Primary: Whitlatch-Union Mine
Secondary: Owyhee and Mcintye Inclines
Commodity
Primary: Gold
Secondary: Copper
Secondary: Lead
Secondary: Zinc
Secondary: Silver
Location
State: Montana
County: Lewis and Clark
District: Helena District
Land Status
Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Holdings
Not available
Workings
Type: Underground
Ownership
Owner Name: Jared W. Young
Home Office: Chicago, Il.
Production
Year: 1948
Time Period: 1905-1948
Mined: 49000.000 mt
Material type: ore
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Polymetallic veins
Operation Type: Unknown
Discovery Year: 1864
Years of Production:
Organization:
Significant: Y
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Mineral Deposit Model
Model Name: Polymetallic veins
Orebody
Not available
Structure
Type: R
Description: Boulder Batholith
Alterations
Alteration Type: L
Alteration Text: Slight Oxidation
Rocks
Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous
Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous
Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Analytical Data
Analytical Data: $20-30/TON AU NEWEST WORKING (1913) $70-130/TON AU.
Materials
Ore: Gold
Gangue: Quartz
Gangue: Pyrite
Comments
Comment (Location): INFO FROM LAND.ST :(1950)
Comment (Other Database): RECORD NUMBER 724 IS A POTENTIAL DUPLICATE OF THIS RECORD
Comment (Production): $5,500,000 TO $6,000,000 PRODUCED IN GOLD
Comment (Workings): EXTENSIVE UNDERGROUND OPERATION
Comment (Geology): S OF CONTACT WITH QUADRANT QUARTZITE
Comment (Production): Estimated production of 275,000 oz Au occurred prior to 1901 from ore containing between $20 to $25 (0.97 to 1.21 oz) Au. Estimated ore mined prior to 1901 more than 250,000 short tons.
Comment (Deposit): DIP CHANGES ABRUPTLY FROM NEARLY HORIZONTAL TO NEARLY VERTICAL
References
Reference (Deposit): USGS BULL 842, P. 210.
Reference (Deposit): USGS BULL 527, P. 99-100.
Reference (Deposit): MBMG MEM 31, P. 56-57.
Reference (Production): MONT. BUREAU OF MINES AND GEO. MEM. 31, P. 56-57.
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.
