Grunter Mine

The Grunter Mine is a gold mine located in Lemhi county, Idaho at an elevation of 3,599 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

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Site Name

Primary: Grunter Mine
Secondary: Shoup

Commodity

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

Location

State: Idaho
County: Lemhi
District: Mineral Hill And Indian Creek 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.
Administrative Organization: Salmon National Forest

Holdings

Not available

Workings

Type: Surface/Underground

Ownership

Owner Name: Gold Producers, Inc.

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Surface-Underground
Discovery Year: 1882
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: Salmon River Mountains

Mineral Deposit Model

Not available

Orebody

Form: TABULAR

Structure

Type: L
Structure: Fault

Type: L
Structure: Brecciation

Type: L
Structure: Gouge

Type: L
Structure: Slickensides

Alterations

Alteration Type: L
Alteration: Sericitization

Alteration Type: L
Alteration: Silicification

Rocks

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

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

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

Analytical Data

Analytical Data: SCHEELITE CONCENTRATED IN SMALL PATCHES

Materials

Ore: Galena
Ore: Huebnerite
Ore: Gold
Ore: Chalcopyrite
Ore: Scheelite
Ore: Sphalerite
Gangue: Magnetite
Gangue: Quartz
Gangue: Pyrrhotite
Gangue: Muscovite
Gangue: Calcite
Gangue: Pyrite

Comments

Comment (Development): 3 claims, the Grunter, Pony, 87

Comment (Geology): Fault trends NE, Dips 25 deg Se; lamprophyre dike trends N 80 deg E, dips 80 deg S.

Comment (Reserve-Resource): $30000 value

Comment (Location): 1 mile east of Kentuck on same vein

Comment (Production): $75000

Comment (Deposit): A second vein trends N, dips steeply E, and is 2 ft wide

Comment (Geology): Original Structures entry: Local - Fault, Brecciation, Gouge, Slickensides

Comment (Geology): Original concentration process entry: Igneous Solution

Comment (Geology): Original alteration entry: Local - Sericitization, Silicification

Comment (Geology): Original ore control entry: Shear Zone, Fractures , Jointing

Comment (Geology): Fractured gneiss

Comment (Deposit): This has been worked as a gold mine. The average content of Wo3 is less than 0.1 percent.

References

Reference (Deposit): Bell, R. N., 1904, Report Of The Mining Districts Of Idaho For The Year 1903.

Reference (Deposit): Griner, W. C., 1975, Seventy-First Annual Report Of The Mining Industry Of Idaho For 1973-1974, 98 P.

Reference (Deposit): Gray, F. A., 1927, Ore Deposits Of The Mineral Hill District, Lemhi County, Idaho: Minneapolis, Minnesota, Univ. Of Minnesota, Phd Thesis.

Reference (Deposit): 1904 Compile State Mine Inspector's Annual Report

Reference (Deposit): 1910 Compile State Mine Inspector's Annual Report

Reference (Deposit): 1968 Recon A. H. Koschmann And M. H. Bergendahl, Prof. Paper 610

Reference (Deposit): 1964 Compile Idaho Bureau Of Mines And Geology Spec. Rept. No. 1

Reference (Deposit): 1975 Compile State Mine Inspector's Annual Report

Reference (Deposit): USBM WFOC Wilderness Studies

Reference (Production): Gray, F. A., 1927, Univ. Of Minnesota, Phd Thesis.

Reference (Deposit): Lemmon, D.M., Unpublished Data.

Reference (Deposit): Umpleby, J.B., 1913, USGS Bulletin 528.

Reference (Deposit): Lemmon, D.M., And Tweto, O.L., 1962, Tungsten In The U.S., USGS Map, MR-25.

Reference (Deposit): Moore, F. C., 1910, Eleventh Annual Report Of The Mining Industry Of Idaho For The Year 1909.

Reference (Deposit): Hobbs, S. W., 1964, Mineral Resource-Tungsten, In Mineral And Water Resources Of Idaho: Idaho Bureau Of Mines And Geology Spec. Rept. No. 1, P. 223 - 233.

Reference (Deposit): Koschmann, A. H., And Bergendahl, M. H., 1968, Principal Gold-Producing Districts Of The United States: USGS Prof Paper 610, P 136

Idaho Gold

"Where to Find Gold in Idaho" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Idaho. Read more: Where to Find Gold in Idaho.