Dakotah Mine

The Dakotah Mine is a silver, lead, and zinc mine located in Cascade county, Montana at an elevation of 6,558 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: Dakotah Mine
Secondary: Dakota Mine

Commodity

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

Location

State: Montana
County: Cascade
District: Neihart 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: C. Bennett, J. Bennett, F. Clarke
Home Office: Great Falls, Mt.

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1883
Discovery Year: 1883
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Little Belt Mountains

Mineral Deposit Model

Not available

Orebody

Form: LINEAR

Structure

Type: R
Description: East - West Arching Of Gneisses And Schists

Type: L
Description: Fissure In Light Colored Gneiss

Alterations

Alteration Type: L
Alteration Text: Country Rock In Vein Area Crushed And Altered

Rocks

Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic

Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic

Name: Diorite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Neoproterozoic

Analytical Data

Not available

Materials

Ore: Galena
Ore: Sphalerite

Comments

Comment (Deposit): RUN OF MINE ORE IN 1949 CONTAINED PB AND ZN IN A RATIO OF 2.5 TO 1. ZINC CONCENTRATE AVG. 52 PERCENT ZN, 3 - 4 PERCENT PB 0.5 OZ AU, 7 OZ. AG. LEAD CONCENTRATE AVG. 55 PERCENT PB, 6 - 9 PERCENT ZN 0.2 OZ AU AND 20 OZ. AG. AS OF 1949 WORKINGS IN GOOD CONDITION BUT TIGHTLY BARRICADED.

Comment (Location): TOPOGRAPHIC ELEVATION AND MINE MAP ELEVATION (ROBERTSON) DO NOT COMPLETELY AGREE SECTIONS NOT SURVEYED

Comment (Production): MINE WAS OPERATED IN 1911 AND 1912 BUT NO PRODUCTION FIGURES ARE AVAILABLE

Comment (Deposit): THE ATTITUDE OF THE VEIN CHANGES WITHIN THE DIORITE TO BETWEEN N 20 DEG E AND N 40 DEG E. THE VEIN VARIES IN WIDTH FROM 4 TO 8 FEET. VEIN NARROWS AND TIGHTENS WITHIN PINTO DIORITE

Comment (Workings): DIMENSIONS OF WORKINGS APPROXIMATE

References

Reference (Production): ROBERTSON, A. F., 1951 , MINES AND MIN. DEP. (EXCEPT FUELS) CASCADE CO., MONT., P. 33

Reference (Deposit): ROBERTSON, A. F., 1951 , MINES AND MINERAL DEPOSITS (EXCEPT FUELS) CASCADE COUNTY MONTANA: U. S. BUREAU OF MINES INFORMATION CIRCULAR 7589 P 33 - 34

Reference (Deposit): WEED, W. H., 1900 , GEOLOGY OF THE LITTLE BELT NOUNTAINS, MONTANA: U. S. GEOLOGICAL SURVEY 20TH ANNUAL REPORT PART 3 P. 432 - 433

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.