The San Geronimo is a gold mine located in Marin county, California at an elevation of 361 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: 361 Feet (110 Meters)
Commodity: Gold
Lat, Long: 38.01889, -122.65639
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.
San Geronimo MRDS details
Site Name
Primary: San Geronimo
Commodity
Primary: Gold
Location
State: California
County: Marin
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Coast Ranges
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Not available
Comments
Comment (Production): SHAFT SUNK IN SILICA-CARBONATE ROCKS IN 1870'S AND IT WAS REPORTED THAT ORE AVERAGED $30 TO $40 PER TON IN GOLD AND CONTAINED IN ADDITION SILVER, IRON, MANGANESE, ANTIMONY, AND TRACES OF NICKEL. THERE IS NO RECORD OF PRODUCTION.
Comment (Workings): A 200-FT. SHAFT.
Comment (Deposit): SHAFT IS 200 YDS NORTH OF SIR FRANCIS DRAKE HIGHWAY AND 0.3 MI. WEST OF THE SAN GERONIMO -NICASIO ROAD. IT HAS BEEN FILLED IN AS A SAFETY PRECAUTION.
References
Reference (Deposit): CALIF. JOUR. MINES & GEOL. V. 51, NO. 3, JULY 1955, P. 268-9, 280, PL.
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.
