The Toyon Mine Granada Switzer is a mercury mine located in Napa 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.
Toyon Mine Granada Switzer MRDS details
Site Name
Primary: Toyon Mine Granada Switzer
Secondary: Toyon Mine
Secondary: Granada Mine
Secondary: Switzer Mine
Commodity
Primary: Mercury
Location
State: California
County: Napa
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Owner Name: Frank Adams
Production
Not available
Deposit
Record Type: Site
Operation Category: Producer
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 (Workings): INCLINED SHAFT, 2 MAIN LEVELS, AND SEVERAL SUBLEVELS. - 2 SETS OF WORKINGS
Comment (Deposit): VALLEY (LEDELL) HG MINE ALSO IN THIS SEC. - HAD SMALL PROD. - USBM IC 8252 P. 185 DMEA APPL'N 3698 - DR. H.M. SIMMONS - REPORTED 5/24/55 - BY PAMPEYA & WARNE - CONTRACT AWARDED - DMEA INDEX P. 22, P 5 OF COUNTY LIST USBM IC 8252 P 185.
Comment (Production): FIRST RECORDED PRODUCTION WAS 1933. SINCE THEN THE MINE HAS HAD A SMALL AND ERRATIC PRODUCTION. ABOUT 100 FLASKS.
References
Reference (Deposit): CALIF. JOUR. V. 42, NO. 3, JULY 1946, P. 265
Reference (Deposit): JOUR. V. 44, NO. 2, APRIL 1948, P. 182; JOUR. V. 35, NO. 4, OCT. 1939, P. 415
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.
