California · Trinity County
Past Producer
Black Cloud Group
Trinity County, California, United States
Gold
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USGS source ↗
Commodities
Primary
Gold
Commodity type
M
Deposit
Deposit size
S
Materials
Ore minerals
Gold
Gangue
Quartz
Geology
Host rock
Metasedimentary Rock,Mica Schist,Volcanic Rock (Aphanitic)
Associated rock
Volcanic Rock (Aphanitic)
Alteration
Highly-Weathered And Decomposed Zone Near Surface
Economic & production
Development status
Past Producer
Identification
Deposit ID
10035888
MRDS ID
M023832
Region
NA
Data score
C
Coordinates
40.76291, -122.92222
References
AVERILL, C.V., 1941, MINERAL RESOURCES OF TRINITY COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 37, NO. 1, P. 26-27