California · Humboldt County
Past Producer

Fort Baker Mine

Humboldt County, California, United States
Manganese
⌖ Show on mapUSGS source ↗
Commodities
TertiaryManganese
Commodity typeM
Materials
Other materialsChert, Psilomelane, Pyrolusite
Economic & production
Development statusPast Producer
First production1918
Discovery year1917
Identification
Deposit ID10163612
Alternate namesPorter Ranch DepositprospectPorter Ranch
RegionNA
Data scoreC
Coordinates40.59424, -123.75783
References
TRASK-GEO DESCRIPT MN DEPS OF CAL-CAL DIV MINES BUL 152-APRIJENKINS-MN IN CALIF-CAL DIV OF MINES BUL.125-DEC 1943TRENGOVE-RECON OF CAL MN DEPS-USBM-RPT OF INVEST 5579-1960BRADLEY-MN & CR IN CALIF-CAL DIV OF MINES BUL.76-1918LAIZURE-RPT XXI OF STATE MINERALOGIST-MINING IN CA-HUMBOLDTDAVIS, E.F. &WOODFORD, A.O.-UNPUBRPT CAL STATE COUNCIL FOR D