The Duncan Mine is a copper mine located in Idaho county, Idaho at an elevation of 2,201 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: 2,201 Feet (671 Meters)
Commodity: Copper
Lat, Long: 45.5264, -116.52690
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.
Duncan Mine MRDS details
Site Name
Primary: Duncan Mine
Secondary: Great Western Mine
Secondary: Great Eastern
Commodity
Primary: Copper
Tertiary: Gold
Tertiary: Silver
Location
State: Idaho
County: Idaho
District: Crooks Corral 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: Nez Perce National Forest
Holdings
Not available
Workings
Type: Surface/Underground
Ownership
Owner Name: Duncan, Asa
Years: 1945 -
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Underground
Discovery Year: 1900
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Clearwater Mountains
Mineral Deposit Model
Not available
Orebody
Form: IRREGULAR
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Bleached, Sericitization, Silicification, Pyritization
Rocks
Name: Tuff
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Permian
Name: Tuff
Role: Associated
Age Type: Host Rock
Age Young: Late Permian
Name: Tuff
Role: Associated
Age Type: Associated Rock
Age Young: Late Permian
Analytical Data
Not available
Materials
Ore: Malachite
Ore: Chalcocite
Ore: Chalcopyrite
Gangue: Pyrite
Comments
Comment (Geology): Rocks Strike N. 30 - 50 Deg. E. And Dip 38 - 45 Deg. S.E.
Comment (Location): Within 1/2 Mi. Of Snake River And About 800 Ft. Above Water Level. Land Status Value Calculated 7-94 Using GIS Overlay Analysis With USFS Land Ownership Boundaries, 1:126,720 Scale.
Comment (Production): In 1913 Several Shipments Of Ore With 10 - 20% Cu. Reported.
Comment (Workings): Open Cuts And Adits.
References
Reference (Deposit): WAGNER, W. R., 1945, A GEOLOGICAL RECONNAISSANCE BETWEEN THE SNAKE AND SALMON RIVERS NORTH OF RIGGINS, ID: IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 74, 16 P
Reference (Production): WAGNER, W. R., 1945, ID. BUREAU OF MINES AND GEOL., PAMPHLET 74
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.
