Mine detail: Black Cloud Group

Previously called ''

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Location

Lat / long:

40.76291, -122.92222

Resource(M)

Primary:	Gold
Ore:	Gold
Gangue:	Quartz

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer

Geology

Host type:	Metasedimentary Rock,Mica Schist,Volcanic Rock (Aphanitic)
Associated type:	Volcanic Rock (Aphanitic)
Alteration processes:	Highly-Weathered And Decomposed Zone Near Surface

References

MRDS	M023832
DEP	10035888
Reference	AVERILL, C.V., 1941, MINERAL RESOURCES OF TRINITY COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 37, NO. 1, P. 26-2
Reporter	Nelson, Scott C. (Albers, John, P.)