The Tyro is a gold mine located in Mariposa county, California at an elevation of 2,300 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
Elevation: 2,300 Feet (701 Meters)
Commodity: Gold
Lat, Long: 37.69361, -120.20389
Map: View on Google Maps
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.
Tyro MRDS details
Site Name
Primary: Tyro
Secondary: Rittershoffen
Commodity
Primary: Gold
Secondary: Copper
Location
State: California
County: Mariposa
District: Coulterville
Land Status
Not available
Holdings
Not available
Workings
Type: Underground
Ownership
Owner Name: Louise A. Ward, Laurence Eaton
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1853
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
Not available
Materials
Ore: Covellite
Ore: Gold
Ore: Chalcopyrite
Gangue: Quartz
Comments
Comment (Production): ORE ON 700 FT LEVEL RAN $20 TO AS HIGH AS $500 AU/TON.
Comment (Geology): CONTINUATION OF SAME VEIN SYSTEM THAT CROSSES MALVIN A GROUP.
Comment (Deposit): Discovery Year: EARLY 1850'S
Comment (Deposit): VEIN, 2 - 7 FT THICK
Comment (Workings): SHAFT W/6 LEVELS, DRIFTS, STOPES
Comment (Deposit): PATENTED 20.15 AC ; INFO.SRC : 1 PUB LIT
References
Reference (Deposit): 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
Reference (Deposit): LAIZURE, C. MCK., 1928 , SAN FRANCISCO FIELD DIVISION, IN TWENTY-FOURTH REPORT OF THE STATE MINERALOGIST: CALIFORNIA STATE MINING BUREAU, P. 119
Reference (Production): BOWEN & GRAY, 1957
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.
