Grant Mine

The Grant Mine is a silver and gold mine located in Flathead county, Montana at an elevation of 4,190 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: Grant Mine
Secondary: Ole Mine

Commodity

Primary: Silver
Primary: Gold
Secondary: Barium-Barite
Secondary: Lead

Location

State: Montana
County: Flathead
District: Hog Heaven 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: Surface/Underground

Ownership

Owner Name: Burlington Northern Railroad

Owner Name: D. Grant, D. Clothler, H. Slama

Production

Year: 1964
Time Period: 1963 - 1964
Material type: AG
Description: Cp_Grade: ^About 5 Toz/Ton Est.

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1964
Discovery Year: 1928
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

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

Mineral Deposit Model

Not available

Orebody

Form: IRREGULAR

Structure

Type: R
Description: West Of Rocky Mountain Trench

Type: L
Description: Joints In The Latite And In Country Rock At Contacts

Alterations

Alteration Type: L
Alteration Text: Formation Of Silica, Pyrite, Kaolinite, And Alunite

Rocks

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

Name: Latite
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoproterozoic

Name: Latite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene

Name: Latite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene

Analytical Data

Analytical Data: 15 TO 60 OZ/TON AG IN UNDERGROUND WORKINGS, AND ABOUT 5 OZ/TON IN SURFACE CUTS

Materials

Ore: Barite
Ore: Beidellite
Ore: Argentite
Ore: Latite
Ore: Beudantite
Gangue: Alunite

Comments

Comment (Workings): ORE MINED FROM OPEN CUT CONTAINED ABOUT 5 OZ AG/TON

Comment (Deposit): THE SMALL PIPE AT THE PORTAL OF THE ADIT HAS NOT BEEN FOLLOWED DOWN DIP TO DETERMINE LENGTH. SMALL PIPES (DESCRIBED AS SOLUTION HOLES BY SOME WORKERS) RELATED TO THE LATITE

References

Reference (Deposit): JOHNS, W. M., 1970 , GEOLOGY AND ORE DEPOSITS OF LINCOLN AND FLATHEAD COUNTIES; MONTANA: MONTANA BUREAU OF MINES AND GEOLOGY, BULLETIN 79 , P. 140 - 142.

Reference (Deposit): SHENON, P. J., AND TAYLOR, A. V., JR., 1936 , GEOLOGY AND ORE OCCURRENCE OF THE HOG HEAVEN MINING DISTRICT, FLATHEAD COUNTY, MONTANA: MONTANA BUREAU OF MINES AND GEOLOGY MEMOIR 17 , 26 P.

Reference (Deposit): SHENON, P.J., AND TAYLOR, A.V., JR., 1936, GEOLOGY AND ORE OCCURRENCE OF THE HOG HEAVEN MINING DISTRICT, FLATHEAD COUNTY, MONTANA: MONTANA BUREAU OF MINES AND GEOLOGY MEMOIR 17.

Reference (Deposit): JOHNS, W.M., SMITH, A.G., BARNES, W.C., GILMOUR, E.H., AND PAGE, W.A., 1963, PROGRESS REPORT ON GEOLOGIC INVESTIGATIONS IN THE KOOTENAI-FLATHEAD AREA, NORTHWEST MONTANA, NO. 5, WESTERN FLATHEAD COUNTY AND PART OF LINCOLN COUNTY: MONTANA BUREAU OF MINES AND GEOLOGY BULLETIN 36.

Reference (Deposit): JOHNS, W.M., 1970, GEOLOGY AND MINERAL DEPOSITS OF LINCOLN AND FLATHEAD COUNTIES, MONTANA: MONTANA BUREAU OF MINES AND GEOLOGY BULLETIN 79.

Reference (Deposit): 1929 RECON MBMG, MEM. NO. 17

Reference (Deposit): 1962 GEOLMAP MBMG BULLS. 36 , 79

Reference (Production): JOHNS, 1970 , MONT. BUREAU OF MINES AND GEOL. BULL. 79 , P. 141

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.