The Unknown 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.
Primary Mineral: Mercury
Lat, Long: 38.38, -122.23528
Active Mining Claims
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Unknown MRDS details
Site NamePrimary: Unknown
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
PhysiographyGeneral Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Coast Ranges
Mineral Deposit Model
|Comment: NO RECORD OF PRODUCTION.|
|Comment: CLAIM LOCATION ON QUICKSILVER FINDINGS. THOUGH SHOWN ON DOM QUICKSILVER MAP THERE IS NO OTHER RECORD; THIS IS NOT MENTIONED IN SEVERAL LATER PUBLICATIONS. POSSIBLY THE MINE SYMBOL 1000'N AND 1100' W FROM SE COR., ON USGS QUAD. CAPELL VALLEY, CALIF., 1951.|
Reference Category: Deposit
Reference: ECONOMIC MINERAL MAP OF CALIFORNIA NO. 1, QUICKSILVER, 1935