Wren Ranch Mangatop

The Wren Ranch Mangatop is a manganese mine located in Nevada county, California at an elevation of 1,001 feet.

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

Name: Wren Ranch Mangatop  

State:  California

County:  Nevada

Elevation: 1,001 Feet (305 Meters)

Primary Mineral: Manganese

Lat, Long: 39.0475, -121.11472

Map: View on Google Maps


Satelite image of the Wren Ranch Mangatop

Wren Ranch Mangatop MRDS details

Site Name

Primary: Wren Ranch Mangatop


Commodity

Primary: Manganese


Location

State: California
County: Nevada
District: Lime Kiln


Land Status

Land ownership: State 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 indicate a claim status and does not necessarily indicate an area is open to prospecting.


Holdings

Not available


Workings

Not available


Ownership

Owner Name: R. M. Wren

Owner Name: C. E. Loofbourrow


Production

Not available


Deposit

Record Type: Site
Operation Category: Producer
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: Sierra Nevada


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


Materials

Not available


Comments

Comment (Deposit): PROPERTY CONSISTS OF 160 ACRES. SHAFT FULL OF WATER IN AUGUST, 1942.

Comment (Location): LOCATED IN S 1/2 SECTION 20 UTM. APPROX

Comment (Production): TEN TONS OF ORE MINED UP TO NOVEMBER 1917, IS REPORTED TO ASSAY 50% TO 60% METALLIC MANGANESE AND 6% SILICA. AVERAGE GRADE OF ORE IS 25 PERCENT MANGANSE. PRODUCED 35 TONS OF ORE IN 1918 CONTAINING 35% MANGANESE AND 7% SILICA.

Comment (Workings): 20-FT. INCLINE SHAFT.

Comment (Geology): GEOL.DESC: ORE BED IS 14 FT. LONG, 10 FT. THICK, AND EXPOSED TO A DEPTH OF 20 FT.


References

Reference (Deposit): DOM BULL. 125, P. 147; BULL. 76, P. 51; BULL. 152, 1950, P. 164

Reference (Deposit): MAS BACKUP FILE WFOC, NEVADA COUNTY, CALIF.

Reference (Deposit): CALIF. JOUR. MINES & GEOLOGY, V. 37, NO. 3, JULY 1941, P. 442, 467