The Nimshew is a gold mine located in Butte county, California at an elevation of 2,461 feet.
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
Elevation: 2,461 Feet (750 Meters)
Commodity: Gold
Lat, Long: 39.8425, -121.62028
Map: View on Google Maps
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.
Nimshew MRDS details
Site Name
Primary: Nimshew
Secondary: Nimshaw Possibly Misprint In Text
Commodity
Primary: Gold
Secondary: Platinum
Location
State: California
County: Butte
District: Magalia District
Land Status
Land ownership: Private
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Producer
Deposit Type: Stream Placer
Operation Type: Unknown
Year First Production: 1848
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Middle Cascade Mountains
Mineral Deposit Model
Model Name: Placer Au-PGE
Orebody
Form: STREAM SEDIMENT DEPOSITS
Structure
Not available
Alterations
Not available
Rocks
Name: Gravel
Role: Host
Age Type: Host Rock
Age Young: Pliocene
Analytical Data
Analytical Data: CONCENTRATE YIELDED $107.90/TON AU, $510/TON PT, CONCENTRATION 1 LB/50 TONS GRAVEL. THIS CALCULATES TO APPROX. 18 PPB AU AND 0.6 PPB PT IN RAW GRAVELS
Materials
Ore: Magnetite
Ore: Gold
Ore: Hematite
Comments
Comment (Workings): WORKINGS FOR NIMSHEW SPECIFICALLY ARE NOT KNOWN, BUT DISTRICT HAS UNDERGROUND AS WELL AS SURFACE WORKINGS
Comment (Geology): BEDROCK IS SLATE AND GREENSTONE WITH SERPENTINE
Comment (Deposit): SEE ALSO: MRDS M045344.
Comment (Location): MAGALIA DISTRICT IS DIRECTLY NORTH OF BUTTE CREEK DISTRICT. EXACT LOCATION IS UNKNOWN. LOCATION GIVEN IS AT TOWN OF NIMSHEW IN SEC. 22
Comment (Production): GOLD PRODUCTION ESTIMATE IS PROBABLY TOO HIGH (CLARK)
References
Reference (Deposit): CLARK, W.B., 1970, GOLD DISTRICTS OF CALIFORNIA: CALIFORNIA DIVISION OF MINES AND GEOLOGY BULLETIN 193, P. 88.
Reference (Deposit): DAY, D.T., AND RICHARDS, R.H., 1906, USEFUL MINERALS IN THE BLACK SANDS OF THE PACIFIC SLOPE: U.S. GEOLOGICAL SURVEY MINERAL RESOURCES OF THE UNITED STATES, CALENDAR YEAR 1905, P. 1182.
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.
