Imnaha Group

The Imnaha Group is a copper and silver mine located in Wallowa county, Oregon.

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: Imnaha Group  

State:  Oregon

County:  Wallowa

Elevation:

Commodity: Copper, Silver

Lat, Long: 45.66111, -116.82028

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 Imnaha Group

Imnaha Group MRDS details

Site Name

Primary: Imnaha Group
Secondary: Bluebird Copper-Silver


Commodity

Primary: Copper
Primary: Silver


Location

State: Oregon
County: Wallowa


Land Status

Administrative Organization: Wallowa-Whitman National Forest


Holdings

Not available


Workings

Not available


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S


Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Columbia Plateau
Physiographic Section: Blue Mountain Section


Mineral Deposit Model

Not available


Orebody

Not available


Structure

Not available


Alterations

Not available


Rocks

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

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

Name: Andesite
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Triassic


Analytical Data

Not available


Materials

Ore: Malachite
Ore: Chalcopyrite
Gangue: Quartz
Gangue: Prehnite
Gangue: Calcite


Comments

Comment (Deposit): VISIBLE CONCENTRATIONS OF COPPER MINERALS ARE SMALL AND WIDELY SEPARATED

Comment (Geology): MINERALIZATION IS LOCALIZED ALONG FRACTURES AND IN AMYGDULES. THE DEPOSITS ARE IN A SMALL WINDOW OF LATE TRIASSIC ROCKS, SURROUNDED BY TERTIARY BASALT

Comment (Location): THE PROSPECT IS IN THE IMNAHA RIVER CANYON ABOUT 6.5 MILES NORTH OF IMNAHA


References

Reference (Deposit): WAGNER, N.S., 1947, IMNAHA COPPER CLAIMS: ODGMI UNPUBLISHED REPORT.

Reference (Deposit): WAGNER, N.S., 1947, IMNAHA COPPER CLAIMS: OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES UNPUBLISHED REPORT.

Reference (Deposit): 1947 RECON ODGMI UNPUB. REPT


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: Where to Find Gold in Oregon.