Union Mine

The Union Mine is a gold mine located in Baker county, Oregon at an elevation of 4,321 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: Union Mine  

State:  Oregon

County:  Baker

Elevation: 4,321 Feet (1,317 Meters)

Primary Mineral: Gold

Lat, Long: 44.87778, -117.34361

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 Union Mine

Union Mine MRDS details

Site Name

Primary: Union Mine
Secondary: Union Tunnel Company
Secondary: Cynthia Claims


Commodity

Primary: Gold


Location

State: Oregon
County: Baker
District: Sparta 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: Wallowa-Whitman National Forest


Holdings

Not available


Workings

Not available


Ownership

Owner Name: J. Thompson
Home Office: Baker, Or.
Years: 1979 -


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1875
Years of Production:
Organization:
Significant: N
Deposit Size: S


Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Columbia Plateau
Physiographic Section: Payette Section


Mineral Deposit Model

Not available


Orebody

Not available


Structure

Not available


Alterations

Not available


Rocks

Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Late Triassic

Name: Granite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Triassic

Name: Granite
Role: Associated
Age Type: Host Rock
Age Young: Late Triassic


Analytical Data

Not available


Materials

Ore: Iron
Gangue: Quartz


Comments

Comment (Production): PRODUCTION FIGURES NOT VERIFIED.

Comment (Deposit): Discovery Year: 1870'S


References

Reference (Production): LINDGREN,1901

Reference (Deposit): LINDGREN, W., 1901, GOLD BELT OF THE BLUE MOUNTAINS OF EASTERN OREGON; USGS ANN. REPT. NO. 22, P. 736


Oregon Gold

Where to Find Gold in Oregon

"Where to Find Gold in Oregon" 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 Oregon. Read more at Where to Find Gold in Oregon.