The Long Dike Prospect is a cobalt mine located in Lemhi county, Idaho at an elevation of 5,499 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: 5,499 Feet (1,676 Meters)
Commodity: Cobalt
Lat, Long: 45.1517, -114.30860
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.
Long Dike Prospect MRDS details
Site Name
Primary: Long Dike Prospect
Commodity
Primary: Cobalt
Tertiary: Nickel
Tertiary: Copper
Location
State: Idaho
County: Lemhi
District: Blackbird
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
Not available
Ownership
Owner Name: W. T. Keele, E. F. Waterman
Production
Not available
Deposit
Record Type: Site
Operation Category: Prospect
Operation Type: Surface
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
Not available
Structure
Type: L
Structure: Faults
Alterations
Not available
Rocks
Name: Schist
Role: Host
Description: Schistose Quartz-Biotite
Age Type: Host Rock
Age Young: Neoproterozoic
Name: Schist
Role: Host
Description: Schistose Quartz-Biotite
Age Type: Host Rock Unit
Age Young: Neoproterozoic
Analytical Data
Not available
Materials
Ore: Cobaltite
Gangue: Quartz
Comments
Comment (Development): Econ.Com: Insignificant Reserves, No Economic Potential
Comment (Workings): Discovery Pits, Cat Road, Trenches
Comment (Geology): 1-4 Ft. Shear Zone Trends N 75 Deg E, Dips 30 Deg NW ; Geol.Desc: One-To Four-Foot Shear Zone, Strike N. 75 Deg. E., Dip 30 Deg. Nw; In Slightly Schistose Quartz-Biotite Rock; Maximum Possible Length-500 Ft. Because Of Limiting Faults; Spots Of Quartz, Gossan, And Cobalt And Copper Bloom In Shear Zone
Comment (Geology): Original Structures entry: Local - Faults
References
Reference (Deposit): Umpleby, J.B., 1913, Geology And Ore Deposits Of Lemhi County, Idaho: USGS Bulletin 528, 182 P.
Reference (Deposit): Vhay, J.S., 1948, Cobalt-Copper Deposits In The Blackbird District, Lemhi County, Idaho: USGS Strategic Minerals Inv. Prelim. Rept. 3-219, 26 P.
Reference (Deposit): Shockey, P.N., 1957, Reconnaissance Geology Of The Leesburg Quadrangle, Lemhi County, Idaho: Idaho Bureau Of Mines And Geology Pamphlet 113, 42 P.
Reference (Deposit): Bennett, 1977, IBMG P-167.
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.
