The Dreamland Mine is a manganese mine located in Sonoma 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.
Name: Dreamland Mine
Lat, Long: 38.56944, -122.78778
Map: View on Google Maps
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.
Dreamland Mine MRDS details
Primary: Dreamland Mine
Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Years of Production:
Deposit Size: S
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Coast Ranges
Mineral Deposit Model
Analytical Data: AVERAGE GRADE 40 PERCENT MANGANESE
Comment (Geology): GEOL.DESC: 1 1/2 TO 2 FT. THICK ORE BED IS ENCLOSED IN THIN-BEDDED RADIOLARIAN CHERT. OVERLYING ORE, AND SEPARATING IT FROM CHERTS ABOVE IS A 6 TO 12 INCH THICK BED OF YELLOW JASPER. ORE IS SOFT BLACK CRYSTALLINE MATERIAL WITH SOME IRON OXIDE LAMINATIONS. CHERTS BELOW ORE ARE STAINED WITH MANGANESE OXIDE. ORE AND ENCLOSING CHERTS ARE WARPED AND CUT BY A FAULT.
Reference (Deposit): D.O.M. BULL. 152 1950 PP. 283 - 284
Reference (Deposit): D.O.M. BULL. 125 1943 P. 186
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