The Four Sevens Group

The The Four Sevens Group is a lead, silver, and gold mine located in Park county, Montana at an elevation of 7,999 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: The Four Sevens Group
Secondary: 4-Sevens

Commodity

Primary: Lead
Primary: Silver
Primary: Gold
Tertiary: Zinc

Location

State: Montana
County: Park
District: Independence (Boulder River)

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

Not available

Ownership

Owner Name: C. Blakeley, Mclsod,
Years: 1950 -

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
Deposit Type: Vein
Operation Type: Unknown
Discovery Year: 1905
Years of Production:
Organization:
Significant: N

Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Middle Rocky Mountains
Physiographic Detail: Absaroka Mountains

Mineral Deposit Model

Not available

Orebody

Form: BANDED

Structure

Not available

Alterations

Not available

Rocks

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

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

Analytical Data

Analytical Data: AG-.59 OZ/T.
Analytical Data: AU-.01 OZ/T
Analytical Data: SAMPLE CUT ACROSS MINERALIZED ZONE SHOWED: PB-.5%

Materials

Gangue: Sphalerite

Comments

Comment (Deposit): STRIKE AND DIP IS FOR THE HOST ROCKS ENCLOSING THE MINERALIZED ZONE.

Comment (Location): POINT LOCATION GIVEN IS APPROXIMATE FOR UNCHARTED SEC 21.

References

Reference (Deposit): REED, G, 1950, MINES AND MINERAL DEPOSITS, PARK CO., MONT., U.S.B.M. INF. CIRC. 7546, P. 55

Reference (Deposit): WEDOW, H, ET AL, 1975, MINERAL RESOURCES OF THE ABSAROKA PRIM. AREA AND VICINITY, PARK AND SWEETGRASS CO, MONT, USGS BULL 1391-B, P. 35

Reference (Deposit): 1962 OTHER MBMG BULL 30.

Reference (Deposit): 1975 GEOCHEM WEDOW, BULL 1391-B

Reference (Deposit): YOUNG, CROWLEY AND SAHINEN, 1962, MARKETING PROBLEMS OF SMALL BUSINESS ENTERPRISE ENGAGED IN LEAD AND ZINC MINING, MBMG BULL 30, P. 32

Reference (Deposit): CONSV. DIV. COMP. DATE, 12-29-1961

Reference (Deposit): 1950 COMPILE USBM. INF. CIRC. 7546.

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.