The Lone Tree 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.
Lone Tree MRDS details
Site Name
Primary: Lone Tree
Commodity
Tertiary: Manganese
Location
State: California
County: Mendocino
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Owner Name: W. S. Graham
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 25 PERCENT MANGANESE, 30 PERCENT SILICA.
Materials
Not available
Comments
Comment (Production): NO PRODUCTION. IDLE. THERE ARE ABOUT 3 TONS OF FLOAT AVERAGING ABOUT 25 PERCENT MANGANESE AND 30 PERCENT SILICA.
Comment (Geology): GEOL.DESC: ORE OCCURS AS FLOAT IN AREA UNDERLAIN BY THIN BEDDED RADIOLARIAN CHERT. ORE IS MOSTLY SOFT BLACK SILICEOUS IRON STAINED OXIDES. SOME CHERT BLOCKS ARE EMBEDDED IN SOFT MANGANESE OXIDE. CHERT FLOAT IS HEAVILY STAINED WITH MANGANESE OXIDE. FLOAT ORE IS BRECCIATED.
References
Reference (Deposit): CALIF. JOURNAL OF MINES & GEOLOGY, V. 49, NO. 4 OCT., 1953, P. 388
Reference (Deposit): D.O.M. BULL. 152, PP. 128-9.
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.
