The Trinidad Mine is a chromium mine located in San Luis Obispo county, California at an elevation of 1,781 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: 1,781 Feet (543 Meters)
Commodity: Chromium
Lat, Long: 35.36306, -120.68528
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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.
Trinidad Mine MRDS details
Site Name
Primary: Trinidad Mine
Commodity
Primary: Chromium
Location
State: California
County: San Luis Obispo
Land Status
Land ownership: Military Reservation
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 definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Holdings
Not available
Workings
Type: Surface
Ownership
Owner Name: Schwartz, A. E. (Mineral Rights)
Home Office: C/O K. Pierce, Trinidad Mining Co., Inc., 434 Monterey Ave., Morro Bay, Ca. 93442
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1885
Year Last Production: 1958
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Coast Ranges
Physiographic Detail: Santa Lucia Range
Mineral Deposit Model
Not available
Orebody
Form: IRREGULAR
Structure
Type: L
Description: Volc. And Sed. Rocks Folded Into A Syncline Which Is Roughly Symmetric About Ridge Crest.
Alterations
Alteration Type: L
Alteration Text: Serpentinized Dunite
Rocks
Not available
Analytical Data
Analytical Data: MASSIVE ORE AVG. 46% CR2O3, CR TO FE RATIO OF 2.7.
Materials
Ore: Chromite
Comments
Comment (Geology): THE DEPOSIT OCCURS IN AN ELONGATE NW-SE TRENDING ULTRAMAFIC BODY EXPOSED FOR 16 KM ON THE CREST OF THE MAIN RIDGE OF THE SANTA LUCIA RANGE.
Comment (Location): LOCATED ON SMALL SPUR HEADING SOUTH OFF MAIN RIDGE OF SANTA LUCIA RANGE. ; INFO FROM LAND.ST :(1975)
Comment (Deposit): SEVERAL ORE ZONES WITH AVG. DIMENSIONS OF 30M BY 5M BY 5M WERE RECOVERED.
Comment (Workings): WORKINGS, 1975, CONSISTED OF A LARGE, BENCHED OPEN PIT.
References
Reference (Deposit): STINSON, M.C., 1975, CDMG MINERAL PROPERTY REPORT, UNPUBLISHED.
Reference (Deposit): SMITH, C.T. AND GRIGGS, A.V., 1944, CHROMITE DEPOSITS NEAR SAN LUIS OBISPO COUNTY, CA., USGS BULL 945-B, PP. 38-40.
Reference (Deposit): WALKER, G.W. AND GRIGGS, A.B., 1953, CHROMITE DEPOSITS OF THE SOUTHERN COAST RANGES OF CALIF., CDMG BULL 134 PART 3, CHAPT. 2, PP. 63-64.
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.
