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
Elevation: 3,599 Feet (1,097 Meters)
Commodity: Gold
Lat, Long: 45.3736, -114.28890
Map: View on Google Maps
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.
Grunter Mine MRDS details
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.
