Twin Apex Mine

The Twin Apex Mine is a lead mine located in Custer county, Idaho at an elevation of 6,900 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

Name: Twin Apex Mine  

State:  Idaho

County:  Custer

Elevation: 6,900 Feet (2,103 Meters)

Commodity: Lead

Lat, Long: 44.3069, -114.50250

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.


Satelite image of the Twin Apex Mine

Twin Apex Mine MRDS details

Site Name

Primary: Twin Apex Mine
Secondary: McClure


Commodity

Primary: Lead
Tertiary: Copper
Tertiary: Zinc
Tertiary: Silver


Location

State: Idaho
County: Custer
District: Bayhorse District


Land Status

Land ownership: BLM Administrative Area
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: Underground


Ownership

Owner Name: Bruno Lead Silver Mines


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Underground
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: IRREGULAR


Structure

Not available


Alterations

Not available


Rocks

Name: Argillite
Role: Host
Age Type: Host Rock
Age Young: Mississippian

Name: Argillite
Role: Host
Age Type: Host Rock Unit
Age Young: Mississippian


Analytical Data

Not available


Materials

Gangue: Pyrite
Gangue: Quartz


Comments

Not available


References

Reference (Deposit): USBM, 1975, Activity Of Idaho Mining Properties, 1974: USBM; Boise, Idaho, 61 P.

Reference (Deposit): Ross, C. P., 1937, Geology And Ore Deposits Of The Bayhorse Region, Custer County, Idaho: USGS Bulletin 877, 161 P.

Reference (Deposit): Campbell, A., 1946 , Forty-Seventh Annual Report Of The Mining Industry Of Idaho For The Year 1945

Reference (Deposit): 1937 Geolmap Ross, C. P., Bulletin 877

Reference (Deposit): 1946 Compile 47th Ann. Idaho State Mine Inspector's Rept., 1945

Reference (Deposit): 1975 Compile USBM, Mining Activity List, 1974

Reference (Production): Campbell, A., 1946, 47th Annual Mine Inspector's Report, P. 245.


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"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.