The Ophir is a gold mine located in Sierra 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.
Lat, Long: 39.45722, -120.85667
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.
Ophir MRDS details
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Deposit Size: S
General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Sierra Nevada
Mineral Deposit Model
Age Type: Host Rock
Age Young: Late Permian
Comment (Production): NO OTHER PRODUCTION RECORD FOUND.
Comment (Deposit): VEIN
Comment (Workings): TWO ADITS. TWO SHAFTS FROM LOWEST ADIT. EXTENT OF LOWEST WORKINGS UNKNOWN, BUT SEVERAL THOUSAND FT. OF DRIFTS AT LEAST.
Comment (Commodity): PRACTICALLY ALL PRODUCTION CAME FROM REGION OF BEND IN VEIN.
Comment (Location): UTM EST. SE 1/4
Comment (Geology): VEIN ON NORMAL FAULT, ON HANGING WALL SIDE FROM SIXTEEN TO ONE, W DISPLACEMENT ONLY A FEW FEET. NEAR SIXTEEN TO ONE VEIN, OPHIR VEIN VEERS SHARPLY TOWARDS PARALLELISM; HERE ALSO MINOR THRUSTING. QTZ. DISCONTINUOUS, ONE PLACE ABSENT FOR 300 FT. ALONG FAULT. NEAR N SHAFT QTZ. REAPPEARS. 2 BRANCH VEINS WHICH DON'T SEEM TO CONTINUE FAR FROM MAIN VEIN.
Reference (Deposit): FERGUSON, H. G., & GANNETT, R. W., 1932 , GOLD QTZ. VEINS OF THE ALLEGHANY DISTRICT, CALIF.: USGS PROF. PAPER 172 , P. 110 , AND FIG. 31 PLATE 10 .
Reference (Production): FERGUSON AND GANNETT, 1932 .
Reference (Deposit): AVERILL, C. V., 1942 , MINES AND MINERAL RESOURCES OF SIERRA CO.: CDM CALIF. JOUR. MINES AND GEOL., VOL. 38 , NO. 1 , P. 62 .
"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 at Where to Find Gold in California.