The Chehalis River Prospect is a manganese mine located in Lewis county, Washington.
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.
Chehalis River Prospect MRDS details
Site Name
Primary: Chehalis River Prospect
Commodity
Primary: Manganese
Location
State: Washington
County: Lewis
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Owner Name: Weyerhaeuser Timber Co.
Home Office: Tacoma, Wash.
Years: 1956 -
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: Pacific Border Province
Physiographic Section: Oregon Coast Range
Mineral Deposit Model
Model Name: Volcanogenic Mn
Orebody
Form: UNKNOWN
Structure
Not available
Alterations
Not available
Rocks
Name: Basalt
Role: Host
Age Type: Host Rock Unit
Age Young: Eocene
Name: Basalt
Role: Host
Age Type: Host Rock
Age Young: Eocene
Analytical Data
Analytical Data: 34% MN, 12% SIO2, 0.12%
Materials
Not available
Comments
Comment (Location): ON HEADWATERS OF E FORK CHEHALIS RIVER
Comment (Deposit): SAID TO BE A DEPOSIT OF MANGANESE WHICH COULD BE CHEAPLY MINED. ; INFO.SRC : 1 PUB LIT
References
Reference (Deposit): WALSH, T.J., 1987, GEOLOGIC MAP OF THE ASTORIA AND ILWACO QUADRANGLES, WASHINGTON AND OREGON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 87-2, SCALE 1:100,000.
Reference (Analytical Data): HUNTTING, 1956
Reference (Deposit): HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS, PART II, METALLIC MINERALS, V. 1, P. 260.
Washington Gold
"Where to Find Gold in Washington" 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 Arizona. Read more: Where to Find Gold in Washington.
