The Intermountain is a gold and silver mine located in Grant 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
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.
Intermountain MRDS details
Site Name
Primary: Intermountain
Secondary: Snarr
Commodity
Primary: Gold
Primary: Silver
Tertiary: Copper
Tertiary: Antimony
Location
State: Oregon
County: Grant
District: Greenhorn
Land Status
Administrative Organization: Umatilla 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: Host
Age Type: Host Rock
Age Young: Late Triassic
Analytical Data
Not available
Materials
Ore: Tetrahedrite
Comments
Comment (Location): SE 1/4, HALF A MILE NORTH OF BI METALLIC. MAY BE EXTENTION OF BI METALLIC VEIN.
Comment (Production): 78 TONS OF ORE SHIPPED IN 1938 . ONE CAR OF ORE SHIPPED IN 1940 .
Comment (Workings): DEVELOPMENT UNKNOWN. 78 TONS OF ORE SHIPPED IN 1938 . ONE CAR OF ORE SHIPPED IN 1940 .
References
Reference (Deposit): BROOKS, H.C. AND RAMP, L., 1968, GOLD AND SILVER IN OREGON; ODGMI BULL. 61, P. 113
Reference (Deposit): OREGON METAL MINES HANDBOOK, 1941, ODGMI BULL. 14-B, P.79
Reference (Deposit): MULLEN, E.D., 1979, GEOLOGY OF THE GREENHORN MOUNTAINS, NORTHEASTERN OREGON; OREGON STATE UNIV. MS. THESIS
Oregon Gold
"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.
