Julia Mine

The Julia Mine is a silver and gold mine located in Powell county, Montana at an elevation of 6,601 feet.

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.

Site Name

Primary: Julia Mine

Commodity

Primary: Silver
Primary: Gold
Secondary: Lead
Secondary: Copper
Secondary: Zinc
Tertiary: Antimony

Location

State: Montana
County: Powell
District: Elliston 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: James Friedereichs
Years: 1933 -

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1905
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

Not available

Structure

Type: R
Description: Boulder Batholith

Alterations

Alteration Type: L
Alteration Text: Slight Pyritization Of Wall Rock

Rocks

Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous

Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous

Analytical Data

Not available

Materials

Ore: Galena
Ore: Sphalerite
Ore: Gold
Ore: Tetrahedrite
Gangue: Pyrite
Gangue: Quartz

Comments

Comment (Location): NEAR THE HEAD OF A SMALL TRIBUTARY THAT JOINS TELEGRAPH CREEK AT HUB CAMP. ; INFO FROM LAND.ST :(1954)

Comment (Production): USGS BULL 842.

Comment (Deposit): THE VEIN IS INCLOSED WITHIN WELL DEFINED WALLS OF GRANITE. ALONG THE WALLS THERE IS CONSIDERABLE GOUGE DUE TO POST MINERAL MOVEMENT. ON THE 300 FT LEVEL THE VEIN HAS BEEN MINED 300 FT W AND 900 FT E TO AN ANDESITE CONTACT.

Comment (Workings): SHAFT, HAS LEVELS ON THE 200 & 300 FT LEVELS

Comment (Geology): AU DECREASED AND AG INCREASED WITH INCREASING DEPTH WITH LITTLE EVIDENCE OF OXIDATION OR ENRICHMENT. TETRAHEDRITE HAS HIGH AG CONTENT. THE ORE SHOWS DEPOSITION TO HAVE TAKEN PLACE DURING TWO OR MORE PERIODS.

References

Reference (Deposit): USGS BULL 527, P. 77-8.

Reference (Deposit): USGS BULL 842, P. 265-66.

Reference (Deposit): MBMG BULL 98, P. 12.

Reference (Deposit): USGS BULL 1151, PL. 1.

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.