The Blende Oro is a zinc and lead 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.
Blende Oro MRDS details
Site Name
Primary: Blende Oro
Commodity
Primary: Zinc
Primary: Lead
Secondary: Copper
Secondary: Gold
Secondary: Silver
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
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
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: Tuff
Role: Host
Age Type: Host Rock
Age Young: Miocene
Name: Tuff
Role: Host
Age Type: Host Rock Unit
Age Young: Miocene
Analytical Data
Not available
Materials
Ore: Sphalerite
Ore: Galena
Ore: Chalcopyrite
Ore: Pyrite
Gangue: Calcite
Gangue: Quartz
Gangue: Sericite
Comments
Comment (Deposit): BRECCIA PIPE?
Comment (Workings): 255 FEET IN TWO ADITS
Comment (Geology): COUNTRY ROCK IS ALTERED TO A MASS OF SERICITE AND CHERTY QUARTZ WITH DISSEMINATED PYRITE. BASE METAL SULPHIDES OCCUR IN MASSES, BANDS AND AS IRREGULAR DISSEMINATIONS
References
Reference (Deposit): BROOKS, H.C. AND RAMP, L., 1968, GOLD AND SILVER IN OREGON; ODGMI BULL. 61, P. 289
Reference (Deposit): OREGON METAL MINES HANDBOOK, 1951, ODGMI BULL. 14-D, P. 116
Reference (Deposit): CALLAGHAN, E. AND BUDDINGTON, A.F., 1938, METALLIFEROUS MINERAL DEPOSITS OF THE WEST CASCADES, OREGON; USGS BULL. 893, P. 90
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.
