Grand Trunk

The Grand Trunk is a silver and gold mine located in Baker 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: Grand Trunk  

State:  Oregon

County:  Baker

Elevation:

Primary Mineral: Silver, Gold

Lat, Long: 44.81528, -118.27722

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 Grand Trunk

Grand Trunk MRDS details

Site Name

Primary: Grand Trunk


Commodity

Primary: Silver
Primary: Gold


Location

State: Oregon
County: Baker
District: Cracker Creek


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: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Years of Production:
Organization:
Significant: N


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: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous

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

Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Early Triassic


Analytical Data

Not available


Materials

Ore: Pyrite
Gangue: Quartz


Comments

Comment (Location): LOCATED ON NORTHEAST EXTENSION OF THE IBEX VEIN

Comment (Production): NO WORK DONE SINCE 1900

Comment (Workings): 1200 FEET OF WORKINGS NO WORK DONE SINCE 1900


References

Reference (Deposit): PARDEE, J. R., AND HEWETT, D. F., 1916 , GEOLOGY AND MINERAL RESOURCES OF THE SUMPTER QUAD.: ORE. BUR. OF MINES AND GEOL., MINERAL RESOURCES OF OREGON, V. 1 , NO. 6 , P. 97 .

Reference (Deposit): LINDGREN, W., 1901, GOLD BELT OF THE BLUE MOUNTAINS OF EASTERN OREGON, USGS ANN. REPORT NO. 2, P.669.


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.