Madre d'Oro Prospect

The Madre d'Oro Prospect is a gold mine located in Idaho county, Idaho at an elevation of 4,199 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

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.

Site Name

Primary: Madre d'Oro Prospect

Commodity

Primary: Gold
Tertiary: Silver
Tertiary: Copper
Tertiary: Zinc

Location

State: Idaho
County: Idaho
District: Elk City 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: Surface/Underground

Ownership

Owner Name: S. W. Litchfield

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Plant Type: Beneficiation (Mill)
Plant Subtype: Crush
Operation Type: Underground
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: LENSES

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Silicification, Oxidation

Rocks

Name: Gneiss
Role: Host
Age Type: Host Rock
Age Young: Neoproterozoic

Name: Gneiss
Role: Host
Age Type: Host Rock Unit
Age Young: Neoproterozoic

Analytical Data

Analytical Data: 300 TONS ORE AVE $23/TON IN 1937

Materials

Ore: Sphalerite
Ore: Chalcopyrite
Ore: Tetrahedrite
Gangue: Pyrite

Comments

Comment (Location): On E Side Of American River About .5 Mi E Of The Mineral Zone

Comment (Development): 3 Patented Claims, 4 Unpatented Claims

Comment (General): Stamp Mill With Amalgamation Used At Property

References

Reference (Deposit): Shenon, P. J., And Reed, J. C., 1934, Geology And Ore Deposits Of The Elk City, Orogrande, Buffalo Hump, And Tenmile Districts, Idaho County, Idaho: USGS Circ. 9, 89 P.

Reference (Deposit): Lorain, S. H., 1938, Gold Mining And Milling In Idaho County: USBM Inf. Circ. 7039, 90 P.

Reference (Deposit): Shenon, P. J., And Reed, J. C., 1934, Geology Of The Elk City Mining District, Idaho: Am. Inst. Mining And Metall. Engineers Tech. Pub. 562, 22 P.

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.