McFadden Mine

The McFadden Mine is a silver mine located in Custer county, Idaho at an elevation of 8,599 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

Name: McFadden Mine  

State:  Idaho

County:  Custer

Elevation: 8,599 Feet (2,621 Meters)

Commodity: Silver

Lat, Long: 44.4503, -114.70560

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 McFadden Mine

McFadden Mine MRDS details

Site Name

Primary: McFadden Mine
Secondary: McFadden Group Mine
Secondary: Altura
Secondary: Yankee Fork Mine
Secondary: Fraction Lode Claims


Commodity

Primary: Silver
Secondary: Gold
Tertiary: Lead
Tertiary: Antimony
Tertiary: Copper


Location

State: Idaho
County: Custer
District: Yankee Fork 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: Challis National Forest


Holdings

Not available


Workings

Type: Underground


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Underground
Discovery Year: 1878
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

Not available


Structure

Not available


Alterations

Alteration Type: L
Alteration Text: Fe, Cu Stains


Rocks

Name: Tuff
Role: Associated
Age Type: Associated Rock Unit
Age Young: Oligocene

Name: Tuff
Role: Associated
Age Type: Host Rock
Age Young: Oligocene

Name: Tuff
Role: Associated
Age Type: Associated Rock
Age Young: Oligocene


Analytical Data

Analytical Data: GOLD: SILVER RATIO OF 1:100


Materials

Ore: Tetrahedrite
Ore: Gold
Ore: Chalcopyrite
Ore: Argentite
Ore: Electrum
Gangue: Quartz
Gangue: Galena
Gangue: Pyrite


Comments

Comment (Production): Production Intermittent, Value $200000

Comment (Deposit): Ore Occurs In Two Shoots; Mcfadden Mine On 'Contact' Vein

Comment (Workings): 3 Tunnels; 10 Stamp Mill


References

Reference (Deposit): Umpleby, J. B., 1913, Some Ore Deposits In Northwestern Custer County, Idaho: USGS Bulletin 539, 104 P.

Reference (Deposit): Anderson, A. L., 1949, Silver - Gold Deposits Of The Yankee Fork District, Custer County, Idaho: Idaho Bureau Of Mines And Geology Pamphlet 83, 37 P.

Reference (Deposit): Ross, C. P., 1927 , Ore Deposits In The Tertiary Lava In The Salmon River Mountains, Idaho: Idaho Bureau Of Mines And Geology Pamphlet 25 , 20 P.

Reference (Deposit): U.S. Bureau Of Mines Open-File Report MLA 6-91, 1991, Table A-3, No. 476, P. 218.

Reference (Production): Umpleby, J. B., 1913, USGS Bulletin 539, P. 89.


Idaho Gold

Where to Find Gold in Idaho

"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.