Prothero Brothers

  

Mine Info

State: California

County: Mariposa

Elevation: 1,801 feet (549 meters)

Primary Mineral: Gold

Lat, Long: 37.43944, -119.87556



Prothero Brothers MRDS details

Site Name

Commodity

Location

Primary: "Prothero Brothers"
Secondary: "Claims: Bonita"
Secondary: "Monarch"
Secondary: "Dandy"
Secondary: "Last Chance"
Secondary: "Lower Group: Big Blue;"
Primary: Gold
State: California
County: Mariposa
District: Mariposa
 

Land Status

Holdings

Workings

Land ownership:
Administrative Organization:
Type:


Ownership

Production

Deposit

Owner Name: Prothero And Belknap Brothers
Company ID:
Percent:
Home Office:
Info Year:
Years: 1920 -

Record Type: Site
Operation Category: Past Producer
Deposit Type:
Plant Type:
Plant Subtype:
Operation Type: Unknown
Mining Method:
Milling Method:
Year First Production:
Year Last Production:
Discovery Year:
Discovery Method:
Years of Production:
Organization:
Significant: N
Deposit Size: S


Physiography

Mineral Deposit Model

Orebody

General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Sierra Nevada
Physiographic Detail:
Name:
Form:


Structure

Alterations

Rocks



Analytical Data

Materials

Gangue: Quartz


Comments

Comment Type:
Deposit
Comment 8 UNPATENTED CLAIMS ; INFO.SRC : 1 PUB LIT
Comment Type:
Production
Comment SOME MINOR WORK IN 1922
Comment Type:
Deposit
Comment VEIN
Comment Type:
Workings
Comment SEVERAL TUNNELS.


References

Reference Category:
Deposit
Pages:
Reference: CASTELLO, W. O., 1921 , MINES AND MINERAL RESOURCES OF MARIPOSA COUNTY IN SEVENTEENTH REPORT OF THE STATE GEOLOGIST: CALIFORNIA STATE MINING BUREAU, P 134
URL:
Reference Category:
Deposit
Pages:
Reference: LAIZURE, C. MCK., 1928 , SAN FRANCISCO FIELD DIVISION IN TWENTY-FOURTH REPORT OF THE STATE MINERALOGIST: CALIFORNIA STATE MINING BUREAU, P. 112
URL:

Did You Know.......

A mine is a hole in the ground, owned by a liar.
-Mark Twain

About The MRDS Mines Database

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.

Search

Recent Posts


Popular Tags

1906 San Francisco Earthquake Best Historical Photos Best Of Mining Era Structures Cemeteries Churches Gambling Towns Headframes Historical Commercial Buildings Historical Homes Hotels Mining Machinery Smelters Stamp Mills Victorian Homes Winter Scenes View All Tags