California · Trinity County
Prospect
Twisted Oak No.1
Trinity County, California, United States
Manganese
⌖ Show on map
USGS source ↗
Commodities
Tertiary
Manganese
Commodity type
M
Economic & production
Development status
Prospect
Discovery year
1942
Identification
Deposit ID
10166144
MRDS ID
M020365
Alternate names
Helmke Manganese Group
Region
NA
Data score
D
Coordinates
40.12705, -123.51531
References
PARKER D. TRASH AND FRANK S. SIMONS APRIL 8 1942