The Spy Rock Guthrie is a mine located in Mendocino county, California.
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.
Spy Rock Guthrie MRDS details
Site Name
Primary: Spy Rock Guthrie
Commodity
Tertiary: Manganese
Location
State: California
County: Mendocino
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Owner Name: Alex Guthrie, G. S. Simmerley
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Coast Ranges
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Analytical Data: AVERAGE GRADE 33 PERCENT MANGANESE AND 35 PERCENT SILICA.
Materials
Not available
Comments
Comment (Deposit): EC. MINERAL MAP OF CALIF., NO. 5 - MANGANESE (1943) SPOTS THIS MINE IN APPROX. SEC. 9 THIS TOWNSHIP; HOWEVER, FROM THE DESCRIPTION IN B. 152 IT WOULD APPEAR TO BE IN APPROX. SEC. 14. CLAIM IS 1 MI. FROM NOBLE ELECTRIC SHELL ROCK DEPOSIT.
Comment (Geology): GEOL.DESC: MASSIVE GRANULAR CHERT STAINED WITH MANGANESE OXIDE AND SOME SMALL IRREGULAR LENSES OF SILICEOUS ORE. MASSIVE CHERT IS OVERLAIN BY THIN BEDDED RADIOLARIAN CHERT WHICH PROBABLY RESTS ON SANDSTONE.
Comment (Production): NOBLE ELECTRIC STEEL CO. OPERATED PROSPECT IN 1916 AND 1917 AND REMOVED 20 TONS OF ORE WHICH WAS NEVER SHIPPED. AVERAGE SAMPLE OF ORE ON PILE ASSAYED 33.4 PERCENT MANGANESE AND 34.7 SILICA.
Comment (Workings): OPEN CUT.
References
Reference (Deposit): D.O.M. BULL. 152, PP. 139-140
California Gold
"Where to Find Gold in California" 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 California. Read more: Where to Find Gold in California.
