The Ochoco is a gold, lead, and silver mine located in Crook 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.
Ochoco MRDS details
Site Name
Primary: Ochoco
Secondary: Ophir-Mayflower
Commodity
Primary: Gold
Primary: Lead
Primary: Silver
Tertiary: Mercury
Tertiary: Antimony
Tertiary: Copper
Tertiary: Zinc
Location
State: Oregon
County: Crook
District: Howard
Land Status
Land ownership: National Forest
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: Ochoco National Forest
Holdings
Not available
Workings
Type: Underground
Ownership
Not available
Production
Year: 1923
Time Period: 1903-1923
Material type: ORE
Description: Cp_Grade: ^1.11 Oz/Ton Au
Year: 1923
Time Period: 1903-1923
Material type: AG
Description: Cp_Grade: ^ 0.06 % Pb
Year: 1923
Time Period: 1903-1923
Material type: AU
Description: Cp_Grade: ^ 0.15 Oz/Ton Ag
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Columbia Plateau
Physiographic Section: Walla Walla Plateau
Mineral Deposit Model
Not available
Orebody
Form: LENTICULAR MASSES
Structure
Not available
Alterations
Not available
Rocks
Name: Andesite
Role: Host
Age Type: Host Rock Unit
Age Young: Oligocene
Analytical Data
Not available
Materials
Ore: Sphalerite
Ore: Chalcopyrite
Ore: Tetrahedrite
Ore: Galena
Ore: Pyrite
Gangue: Calcite
Gangue: Quartz
Gangue: Chlorite
Gangue: Dolomite
Comments
Comment (Commodity): PROSPECTED AS A GOLD DEPOSIT
Comment (Deposit): THE MINERALIZED GROUND CONSISTS OF INTENSELY ALTERED ANDESITE CUT BY NARROW VEINLETS. HIGH GRADE ORE SHOOTS ARE LOCATED AT VEINLET INTERSECTIONS.
References
Reference (Deposit): BROOKS, H. C., 1963, QUICKSILVER IN OREGON: OREGON DEPT. OF GEOLOGY AND MINERAL INDUSTRIES, BULL. 55, 223 P.
Reference (Deposit): MERCURY IN OREGON, 1965, USBM IC 8252
Reference (Deposit): FREDERICK, F., 1945, STATE OF OREGON MAP SHOWING LOCATION OF QUICKSILVER DEPOSITS: OREGON DEPT. OF GEOL. AND MIN. INDUSTRIES, SCALE 1:1,000,000
Reference (Deposit): BROOKS, H.C. AND RAMP, L., 1968, GOLD AND SILVER IN OREGON, ODGMI BULL. 61, P.160
Reference (Deposit): 5) GILLULY, J., REED, J.C., AND PARK, C.F., 1933, SOME MINING DISTRICTS OF EASTERN OREGON, USGS BULL. 846-
Reference (Production): GILLULY AND OTHERS, 1933
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.
