Black Rock No. 11 and 15 Prospects

The Black Rock No. 11 and 15 Prospects is a mine located in Custer county, Idaho at an elevation of 9,400 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: Black Rock No. 11 and 15 Prospects

Commodity

Tertiary: Gold
Tertiary: Tungsten
Tertiary: Silver

Location

State: Idaho
County: Custer
District: East 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: Sawtooth National Forest

Holdings

Not available

Workings

Not available

Ownership

Owner Name: Washington Peak Mining Co.

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
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: White Cloud Peaks

Mineral Deposit Model

Not available

Orebody

Form: LENSES

Structure

Not available

Alterations

Not available

Rocks

Name: Granite
Role: Associated
Age Type: Host Rock Unit
Age Young: Pennsylvanian

Name: Granite
Role: Associated
Age Type: Host Rock
Age Young: Pennsylvanian

Name: Granite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene

Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene

Analytical Data

Analytical Data: 2 STOCKPILE GRAB AND 9 CHIP SAMPLES: 0.01 OZ AU/TON, 0.5 OZ AG/TON.

Materials

Gangue: Quartz

Comments

Comment (Workings): 2 ADITS, 8 DOZER CUTS, 14 PITS.

References

Reference (Deposit): 1974 RECON TSCHANZ, C. M., AND OTHERS, OPEN - FILE REPT.

Reference (Deposit): 1974 COMPILE 71ST ANN. IDAHO MINE INSPECTOR'S REPT., 1973

Reference (Deposit): GRINER, W. C., 1974, SEVENTY - FIRST ANNUAL REPORT OF THE MINING INDUSTRY OF IDAHO FOR 1973 - 1974, 98 P.

Reference (Deposit): TSCHANZ, C. M., AND OTHERS, 1974, MINERAL RESOURCES OF THE EASTERN HALF OF THE SAWTOOTH NATIONAL RECREATION AREA, CUSTER AND BLAINE COUNTIES, IDAHO: USGS OPEN - FILE REPT., 648 P.

Reference (Deposit): VANNOY & OTHERS, 1986, USGS BULL.1545E, P.313, PL.3, NO.132

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.