Emma Mine

The Emma Mine is a lead, silver, and gold mine located in Madison county, Montana at an elevation of 6,099 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: Emma Mine

Commodity

Primary: Lead
Primary: Silver
Primary: Gold
Secondary: Copper
Secondary: Zinc
Secondary: Arsenic

Location

State: Montana
County: Madison
District: Rochester District

Land Status

Land ownership: Private
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: Camilia Gage
Home Office: Twin Bridges
Years: 1950 -

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Year First Production: 1901
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Highland Mountains

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Type: R
Description: Boulder Batholith

Type: L
Description: Fissures, Pegmatite, Andesite And Dolerite Dikes.

Alterations

Alteration Type: L
Alteration Text: Oxidation

Rocks

Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous

Name: Granite
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoarchean

Name: Granite
Role: Associated
Age Type: Host Rock
Age Young: Neoarchean

Analytical Data

Analytical Data: HIGH-GRADE SULPHIDE ORE ASSAYED 51.80% PB, 38.20 OZ. AG/TON, AND 0.10 OZ. AU/TON.

Materials

Ore: Galena
Ore: Chalcopyrite
Ore: Silver
Ore: Sphalerite
Gangue: Limonite
Gangue: Quartz

Comments

Comment (Production): GREATEST ACTIVITY WAS FROM 1928-1932.

Comment (Development): ECON.COM: MINE CLOSED LARGELY BECAUSE OF DECREASE IN LEAD-SILVER PRICES. (SAHINEN, 1950)

Comment (Deposit): EMMA VEIN IS FROM 3 TO 7 FEET WIDE

Comment (Workings): 550 FT. INCLINE SHAFT WITH LEVELS ABOUT 70 FT. APART

Comment (Geology): GEOL.DESC: SULFIDE MINERALIZATION

References

Reference (Deposit): REYNER, M.L., 1950, DIRECTORY OF MINING PROPERTIES, 1949: MT. BUREAU OF MINES AND GEOL., MEMOIR 31, P. 64.

Reference (Deposit): YOUNG, F., CROWLEY, F.A., AND SAHINEN, U.M., 1962, MARKETING PROBLEMS-LEAD AND ZINC MINING: MONT. BUREAU OF MINES AND GEOL., BULLETIN 30, P. 29.

Reference (Deposit): MBMG MEM 19, P. 42.

Reference (Deposit): CONSV. DIV. COMP. DATE, 03-31-1962

Reference (Deposit): 1950 GEOLMAP MBMG MEMOIR 1

Reference (Deposit): MONTANA DEPARTMENT OF STATE LANDS. ABANDONED HARDROCK MINES PRIORITY SITES, SUMMARY REPORT, MARCH 1994, P. 5-164. [copied from deleted record 10124769]

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.