The Independence is a gold, silver, and copper 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.
Independence MRDS details
Site Name
Primary: Independence
Secondary: Cougar - Independence Group
Commodity
Primary: Gold
Primary: Silver
Primary: Copper
Tertiary: Zinc
Tertiary: Arsenic
Location
State: Oregon
County: Grant
District: Granite
Land Status
Administrative Organization: Umatilla National Forest
Holdings
Not available
Workings
Not available
Ownership
Owner Name: W. A. Bowes And Associates
Home Office: Steamboat Springs, Co.
Years: 1969 -
Production
Not available
Deposit
Record Type: Site
Operation Category: 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 Unit
Age Young: Late Cretaceous
Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Early Triassic
Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Analytical Data
Analytical Data: AND 0.09 % SB
Analytical Data: 1.0 % AS
Analytical Data: 0.67 % ZN
Analytical Data: 0.02 % PB
Analytical Data: 0.03 % CU
Analytical Data: 5.76 OZ/TON AG
Analytical Data: SIX DUMP SAMPLES TAKEN BY YOUNG (1979) HAVE AN ARITHMATIC AVERAGE OF 0.98 OZ/TON AU
Materials
Ore: Pyrargyrite
Ore: Tetrahedrite
Ore: Pyrite
Ore: Sphalerite
Comments
Comment (Workings): DEVELOPED BY 1100 FOOT CROSSCUT ADIT AND 3 DRIFT LEVELS TOTALING 2500 FEET. SPORADIC OUTPUT FROM 1907 TO 1940 TOTALS 3,202.19 OUNCES GOLD, 14,582 OUNCES SILVER, AND 4,724 POUNDS COPPER FROM ABOUT 9,500 TONS OF ORE.
Comment (Location): ABOUT 3 1/2 MILES NORTH OF GRANITE
Comment (Production): SPORADIC OUTPUT FROM 1907 TO 1940 TOTALS 3,202.19 OUNCES GOLD, 14,582 OUNCES SILVER, AND 4,724 POUNDS COPPER FROM ABOUT 9,500 TONS OF ORE.
Comment (Commodity): FILLING 3-6 FEET WIDE IS ARGILLITE BRECCIA AND GAUGE, CEMENTED BY DOLOMITE AND QUARTZ. VEIN IN ARGILLITE
Comment (Geology): GEOL.DESC: NUMEROUS LIGHT COLORED DIKES 2 TO 4 FT. WIDE. FILLING IS ARGILLITE BRECCIA AND GOUGE, CEMENTED BY DOLOMITE AND QUARTZ.
References
Reference (Deposit): OREGON METAL MINES HANDBOOK, 1941, ODGMI BULL 14-B, P.47
Reference (Deposit): BROOKS, H.C. AND RAMP, L., 1968, GOLD AND SILVER IN OREGON, ODGMI BULL. 61, P.79
Reference (Deposit): KOCH, G.S., 1959, LODE MINES OF THE CENTRAL PART OF THE GRANITE MINING DISTRICT, GRANT COUNTY, OREGON; ODGMI BULL. 49, P.33
Reference (Deposit): YOUNG, J.S., 1979, PARAGENESIS AND GEOCHEMISTRY OF THE GRANITE GOLD DISTRICT, GRANT COUNTY, OREGON; COLORADO 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.
