Commodities
PrimaryGold
SecondarySilver, Lead, Copper
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Materials
Ore mineralsChalcopyrite, Gold
GangueQuartz
Economic & production
Development statusPast Producer
Identification
Deposit ID10007703
MRDS IDC012178
Alternate namesT.W.A.
RegionNA
Data scoreC
Coordinates38.8885, -121.08603
References
LOGAN, C. A., 1936 , GOLD MINES OF PLACER COUNTY, CALIFORNIA: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 32 , NO. 1 , P. 39 .WARING, CLARENCE A., 1917 , PLACER COUNTY: REPORT 15 OF THE STATE MINERALOGIST, CALIFORNIA STATE MINING BUREAU, P. 327 .GOODWIN, J. G., 1957 , LEAD AND ZINC IN CALIFORNIA: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 57 , NOS. 3 AND 4 , P. 589 .ERIC, J. C., 1948 , TABULATION OF COPPER DEPOSITS IN CALIFORNIA IN COPPER IN CALIFORNIA: CALIFORNIA DIVISION OF MINES BULLETIN 144 , P. 281 .LOGAN, 1936 , GOODWIN, 1957