The Keystone is a zinc, silver, copper, lead, and gold 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
Elevation:
Commodity: Zinc, Silver, Copper, Lead, Gold
Lat, Long: 44.54861, -118.70278
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.
Keystone MRDS details
Site Name
Primary: Keystone
Commodity
Primary: Zinc
Primary: Silver
Primary: Copper
Primary: Lead
Primary: Gold
Location
State: Oregon
County: Grant
District: Quartzburg
Land Status
Not available
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
Not available
Analytical Data
Analytical Data: ASSAYS $8.50 FOR BASE ORE ( 1933 ).
Analytical Data: LOW GRADE ORE
Materials
Ore: Galena
Ore: Chalcopyrite
Ore: Pyrite
Ore: Pyrrhotite
Ore: Sphalerite
Gangue: Calcite
Gangue: Quartz
Comments
Comment (Location): 5 UNPATENTED LODE CLAIMS
Comment (Production): SMALL OUTPUT IN 1882 AND 1889; NO OTHER RECORD AVAILABLE.
Comment (Workings): POOR RECORD: PAY SHOOTS ARE SAID TO BE WORKED OUT DOWN TO CREEK LEVEL. SMALL OUTPUT IN 1882 AND 1889; NO OTHER RECORD AVAILABLE.
Comment (Geology): GEOL.DESC: THE PAY FORMS NARROW STREAK ON HANGING WALL, FOOTWALL, OR BOTH.
References
Reference (Deposit): JOHNSON, F.R., 1975, GEOLOGY OF THE QUARTZBURG MINING DISTRICT, GRANT COUNTY, OREGON; OREGON STATE UNIV. MS. THESIS, P.91
Reference (Deposit): BROOKS, H. C., AND RAMP, L., 1968 , GOLD AND SILVER IN OREGON: ODGMI BULL. 61 , P. 152 .
Reference (Deposit): OREGON METAL MINES HANDBOOK,1941 , ODGMI BULL. 14 - B, P. 119 .
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.
