The Santiam Copper Group is a silver, gold, and copper mine located in Marion 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.
Santiam Copper Group MRDS details
Site Name
Primary: Santiam Copper Group
Secondary: Lotz & Larson
Secondary: Rainbow
Secondary: Northwest Copper Co.
Secondary: Low
Commodity
Primary: Silver
Primary: Gold
Primary: Copper
Tertiary: Zinc
Tertiary: Bismuth
Location
State: Oregon
County: Marion
District: North Santiam
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.
Administrative Organization: Willamette National Forest
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Year: 1941
Time Period: 1923-1941
Material type: CU
Description: Cp_Grade: ^10 % Cu
Year: 1941
Time Period: 1923-1941
Material type: AG
Description: Cp_Grade: ^3.0 Oz/Ton Ag
Year: 1941
Time Period: 1923-1941
Material type: AU
Description: Cp_Grade: ^0.03 Oz/Ton Au
Deposit
Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Northern Cascade Mountains
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: Miocene
Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Miocene
Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Miocene
Analytical Data
Analytical Data: 0.75-1.22 OZ/TON AG
Analytical Data: ORE AVERAGED 2-4.5 % CU
Analytical Data: TRACE AU
Materials
Ore: Chalcopyrite
Ore: Pyrite
Ore: Sphalerite
Gangue: Specularite
Gangue: Quartz
Gangue: Sericite
Comments
Comment (Deposit): BRANCHING VEIN WITH FOUR NARROW ORE SHOOTS. LARGEST SHOOT MEASURED 200 FEET IN LENGTH
Comment (Workings): OVER 1400 FEET; MOSTLY ON THE MINNIE (NORTHWESTERN) VEIN
Comment (Development): AREA IS PRESENTLY BEING EXPLORED FOR PORPHYRY COPPER (1981)
References
Reference (Deposit): BROOKS, H.C. AND RAMP, L., 1968, GOLD AND SILVER IN OREGON; ODGMI BULL. 61, P. 291
Reference (Deposit): OREGON METAL MINES HANDBOOK, 1951, ODGMI BULL. 14-D, P. 128
Reference (Deposit): CALLAGHAN, E. AND BUDDINGTON, A.F., 1938, METALLIFEROUS MINERAL DEPOSITS OF THE CASCADE RANGE IN OREGON; USGS BULL. 893, P. 95
Reference (Deposit): POWER, S.G. AND FIELD, C.W., 1981, THE GEOLOGY, MINERALIZATION AND METALLIZATION OF MINING DISTRICTS IN THE WESTERN CASCADES OF OREGON AND SOUTHERN WASHINGTON; ODGMI SPEC. PAPER.
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.
