The Lower Granger and Shilo is a copper and zinc 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.
Lower Granger and Shilo MRDS details
Site Name
Primary: Lower Granger and Shilo
Secondary: Part of the Santiam Group
Commodity
Primary: Copper
Primary: Zinc
Location
State: Oregon
County: Marion
District: North Santiam
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.
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: Andesite
Role: Host
Age Type: Host Rock
Age Young: Miocene
Analytical Data
Not available
Materials
Ore: Chalcopyrite
Ore: Pyrite
Ore: Sphalerite
Gangue: Calcite
Gangue: Quartz
Comments
Comment (Workings): OVER 900 FEET OF CROSSCUTS AND DRIFTS
Comment (Geology): SHILO TUNNEL FOLLOWS A SEAM OF PYRITIC ALTERED ROCK WITH QUARTZ AND CALCITE STRINGERS
References
Reference (Deposit): CALLAGHAN, E. AND BUDDINGTON, A.F., 1938, METALLIFEROUS MINERAL DEPOSITS OF THE WEST CASCADES IN OREGON; USBM BULL. 893, P. 97
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.
