The Eldorado Group is a mercury and copper mine located in Harney county, Oregon at an elevation of 4,400 feet.
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: 4,400 Feet (1,341 Meters)
Commodity: Mercury, Copper
Lat, Long: 42.34417, -118.67167
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.
Eldorado Group MRDS details
Site Name
Primary: Eldorado Group
Commodity
Primary: Mercury
Primary: Copper
Location
State: Oregon
County: Harney
District: Steens-Pueblo
Land Status
Land ownership: BLM Administrative Area
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.
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
Not available
Mineral Deposit Model
Model Name: Epithermal quartz-alunite Au
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Andesite
Role: Host
Age Type: Host Rock Unit
Age Young: Miocene
Name: Andesite
Role: Host
Age Type: Host Rock
Age Young: Miocene
Analytical Data
Not available
Materials
Ore: Cinnabar
Gangue: Chalcedony
Gangue: Kaolinite
Comments
Comment (Geology): DISSEMINATED CINNABAR OCCURS IN TWO THIN CHALCEDONY VEINS WHICH PARALLEL THE ENCLOSING SILICIFIED REEF.
References
Reference (Deposit): WILLIAMS, H. AND COMPTON, R. R., 1953, QUICKSILVER DEPOSITS OF STEENS MOUNTAIN AND PUEBLO MOUNTAINS, SOUTHEAST OREGON; USGS BULL. 995-B, P. 68
Reference (Deposit): BROOKS, H. C., 1963, QUICKSILVER IN OREGON; ODGMI BULL. 55, P. 197
Reference (Deposit): BROOKS, H. C., 1971, QUICKSILVER DEPOSITS IN OREGON; ODGMI MISC. PAPER 15, MAP WITH TEXT
Reference (Deposit): U.S. BUREAU OF MINES IC 8252, 1965, TABLE 26, P. 330.
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.
