Washington · Clallam County
Occurrence
Mark Twain Prospect
Clallam County, Washington, United States
Manganese
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USGS source ↗
Commodities
Tertiary
Manganese
Commodity type
M
Economic & production
Development status
Occurrence
Discovery year
1958
Identification
Deposit ID
10131137
Alternate names
Mark Twain, Olympic Peninsula Mn - 0530310200
Region
NA
Data score
D
Coordinates
48.01919, -123.64438
References
WA. DIV. MINES AND GEOL. BULLETIN 37, 1956, PART II, VOL. 1,P. 256.U.S. BUREAU OF MINES RI 5530, 1959, P. 52.