Osborne Mine

The Osborne Mine is a silver and gold mine located in Boise county, Idaho at an elevation of 2,900 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: Osborne Mine  

State:  Idaho

County:  Boise

Elevation: 2,900 Feet (884 Meters)

Primary Mineral: Silver, Gold

Lat, Long: 43.9086, -116.22110

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 Osborne Mine

Osborne Mine MRDS details

Site Name

Primary: Osborne Mine


Commodity

Primary: Silver
Primary: Gold
Tertiary: Zinc
Tertiary: Antimony
Tertiary: Lead


Location

State: Idaho
County: Boise
District: Westview 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

Not available


Production

Year: 1919
Time Period: 1911 - 1919
Material type: ORE
Description: Cp_Grade: ^Avg Assays 0.40 Oz Au/Ton


Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S


Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Columbia Plateau
Physiographic Section: Payette Section
Physiographic Detail: Sawtooth Mountains


Mineral Deposit Model

Not available


Orebody

Form: LINEAR, LENSES


Structure

Not available


Alterations

Alteration Type: L
Alteration Text: Fe Stains


Rocks

Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Miocene

Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Miocene


Analytical Data

Analytical Data: PICKED ORE: 1.93 OZ AU/TON, 9.7 OZ AG/TON. AVERAGE ASSAYS: ABOUT 0.40 OZ. AU/TON


Materials

Ore: Sphalerite
Ore: Tetrahedrite
Ore: Chalcopyrite
Ore: Galena
Ore: Boulangerite
Gangue: Quartz
Gangue: Calcite
Gangue: Pyrite


Comments

Comment (Workings): SEVERAL MINOR SURFACE CUTS

Comment (Location): ON THE S. SIDE OF THE PAYETTE R.

Comment (Deposit): ONE LODE DIPS S. LODE ALONG CONTACT OF DIORITE AND DACITE PORPHYRY DIKE DIPS 40 DEG N

Comment (Development): 5 UNPATENTED CLAIMS ( 1929 )


References

Reference (Deposit): ANDERSON, ALBERT L., 1934, GEOLOGY OF PEARL - HORSESHOE BEND GOLD BELT, IDAHO: IDAHO BUREAU OF MINES & GEOL. PAMPHLET 41, P. 32

Reference (Deposit): CAMPBELL, S., 1930 , 31ST ANN. REPT. OF THE IDAHO MINE INSPECTOR FOR 1929 .

Reference (Deposit): 1934 GEOLMAP IDAHO BUREAU OF MINES & GEOL. PAM. 41

Reference (Production): ANDERSON, A. L., 1934, IDAHO BUREAU OF MINES & GEOL. PAMPHLET 41, P. 32.


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 at Where to Find Gold in Idaho.