Tyro

  

Mine Info

State: California

County: Mariposa

Elevation: 2,300 feet (701 meters)

Primary Mineral: Gold

Lat, Long: 37.69361, -120.20389



Tyro MRDS details

Site Name

Commodity

Location

Primary: "Tyro"
Secondary: "Rittershoffen"
Primary: Gold
Secondary: Copper
State: California
County: Mariposa
District: Coulterville
 

Land Status

Holdings

Workings

Land ownership:
Administrative Organization:
Type: Underground


Ownership

Production

Deposit

Owner Name: Louise A. Ward, Laurence Eaton
Company ID:
Percent:
Home Office:
Info Year:
Years: -

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: 1853
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

Ore: Covellite
Ore: Gold
Ore: Chalcopyrite
Gangue: Quartz


Comments

Comment Type:
Production
Comment ORE ON 700 FT LEVEL RAN $20 TO AS HIGH AS $500 AU/TON.
Comment Type:
Geology
Comment CONTINUATION OF SAME VEIN SYSTEM THAT CROSSES MALVIN A GROUP.
Comment Type:
Deposit
Comment Discovery Year: EARLY 1850'S
Comment Type:
Deposit
Comment VEIN, 2 - 7 FT THICK
Comment Type:
Workings
Comment SHAFT W/6 LEVELS, DRIFTS, STOPES
Comment Type:
Deposit
Comment PATENTED 20.15 AC ; INFO.SRC : 1 PUB LIT


References

Reference Category:
Deposit
Pages:
Reference: BOWEN, O. E., JR., GRAY, C. H., JR., 1957 , MINES AND MINERAL DEPOSITS OF MARIPOSA COUNTY, CALIFORNIA: CALIF. JOUR. MINES AND GEOLOGY, V. 53 , NOS. 1 AND 2 , P. 175 - 176 312
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. 119
URL:
Reference Category:
Production
Pages:
Reference: BOWEN & GRAY, 1957
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.

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