Oro Fino Mine

The Oro Fino Mine is a gold and silver mine located in Owyhee county, Idaho at an elevation of 7,349 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: Oro Fino Mine  

State:  Idaho

County:  Owyhee

Elevation: 7,349 Feet (2,240 Meters)

Primary Mineral: Gold, Silver

Lat, Long: 43.01083, -116.69750

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 Oro Fino Mine

Oro Fino Mine MRDS details

Site Name

Primary: Oro Fino Mine
Secondary: Sinker Tunnel


Commodity

Primary: Gold
Primary: Silver


Location

State: Idaho
County: Owyhee
District: French District


Land Status

Land ownership: Private
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: Sinker Tunnel Mining Co.

Owner Name: War Eagle Consolidated Mining Co.


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Year First Production: 1864
Discovery Year: 1863
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: M


Physiography

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


Mineral Deposit Model

Not available


Orebody

Form: IRREGULAR


Structure

Type: L
Description: Cemented Breccia


Alterations

Not available


Rocks

Name: Diorite
Role: Host
Age Type: Host Rock
Age Young: Late Cretaceous

Name: Diorite
Role: Host
Age Type: Host Rock Unit
Age Young: Late Cretaceous


Analytical Data

Analytical Data: AT DEPTH OF 220 FT., AU : AG RATIO WAS 1 : 7.3 BY WEIGHT


Materials

Ore: Argentite


Comments

Comment (Commodity): BELOW 300 - FT. DEPTH, ORE AVERAGED $20 TO $30/TON.

Comment (Location): ON WAR EAGLE MOUNTAIN AT HEAD OF BLUE CR

Comment (Development): 8 PATENTED CLAIMS. PHYSICAL PROPERTY IN 1926 INCLUDED OFFICE BUILDING, BOARDING HOUSE, BOILER HOUSE, BLACKSMITH SHOP, AUXILIARY TRANSFORMER HOUSE, POWDER MAGAZINE, WAREHOUSE, POWER PLANT. ; ECON.COM: IDEAL MINING AND MILLING SITE: AMPLE DUMP GROUND, AMPLE WATER SUPPLY WITHIN TWO MILES, MINIMUM SNOW HAZARD.

Comment (Deposit): ORE BODIES MAY RAKE TO THE S. DIP VARIES 75 - 90 DEG E

Comment (Production): AU, AG


References

Reference (Deposit): LINDGREN, W., 1898, THE GOLD AND SILVER VEINS OF SILVER CITY, DELAMAR, AND OTHER MINING DISTRICTS OF IDAHO: 20TH ANN. REPORT, U.S.G.S., P. 75 -205 (PART 3).

Reference (Deposit): 1898 COMPILE W. LINDGREN 20TH ANN. REPT.

Reference (Deposit): 1926 GEOLMAP IDAHO BUREAU OF MINES & GEOL. BULL. 11

Reference (Deposit): 1968 GEOLMAP IDAHO BUREAU OF MINES & GEOL. PAMPHLET 138

Reference (Production): LINDGREN, W., 1898 , USGS 20TH ANN. REPT. PT. 3 , P. 75 . RAYMOND, R. W., 1870 - 1873 , 41ST - 43RD CONGRESSES, HOUSE OF REP. EX. DOCS.

Reference (Deposit): ASHER, R. R., 1968, GEOLOGY AND MINERAL RESOURCES OF A PORTION OF THE SILVER CITY REGION, OWYHEE COUNTY, IDAHO: IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 138, 106 P.

Reference (Deposit): PIPER, A. M., AND LANEY, F. B., 1926, GEOLOGY AND METALLIFEROUS RESOURCES OF THE REGION ABOUT SILVER CITY, IDAHO: IDAHO BUREAU OF MINES AND GEOL. BULL. 11, 165 P.


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.