Whitlatch-Union Mine

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

Name: Whitlatch-Union Mine  

State:  Montana

County:  Lewis and Clark

Elevation:

Primary Mineral: Gold

Lat, Long: 46.54806, -112.09278

Map: View on Google Maps

Satelite View


Satelite image of the Whitlatch-Union Mine

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 indicate a claim status and does not necessarily indicate an area is open to prospecting.


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.