The South San Francisco Land & Improvement Company is a silver mine located in San Mateo county, California.
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
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.
South San Francisco Land & Improvement Company MRDS details
Site Name
Primary: South San Francisco Land & Improvement Company
Commodity
Primary: Silver
Secondary: Lead
Secondary: Zinc
Location
State: California
County: San Mateo
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1919
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
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Analytical Data: GRAB SAMPLE ASSAYED 20 OZ. IN SILVER
Materials
Gangue: Quartz
Comments
Comment (Location): UTM EST. LOCATION EST. FROM REFERENCE. LAND UNSURVEYED FOR TOWNSHIP, RANGE AND SECTION.
Comment (Deposit): 2 PARALLEL VEINS, AVG. 6 FT. THICK. OUTCROP ON HILL BEHIND MARTIN HIGH SCHOOL ON EDGE OF SOUTH SAN FRANCISCO.
Comment (Workings): 75 FT. SHAFT
References
Reference (Deposit): DAVIS, F.F., 1955, MINES & MINERAL RESOURCES OF SAN MATEO COUNTY, CALIF: CALIF. JOUR. MINES & GEOLOGY V. 51, NO. 4, P. 413, PLATE
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.
