Mine detail: Nicholson Mine

Previously called 'Ridgeway'

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Location

Lat / long:

45.59434, -112.01197

Resource(M)

Primary:	Silver, Gold
Ore:	Gold, Silver
Gangue:	Quartz

Production

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

Geology

Host rock:	Tobacco Root Quartz Monzonite
Host type:	Quartz Monzonite
Associated type:	Quartz Monzonite
Structure:	Tobacco Root Batholith, Bismark Fault

References

MRDS	DC12004
DEP	10019940
Reference	{Deposit:: REYNER, M.L., 1950, DIRECTORY OF MINING PROPERTIES-1949: MONT. BUREAU OF MINES AND GEOL., MEMOIR 31, P. 69.}{Deposit:: TRAUERMAN, C.J., 1940, DIRECTORY OF MINING PROPERTIES; MONT. BUREAU OF MINES AND GEOL., MEMOIR 20, P. 74.}{Deposit:: E. CATHER, USBM, SPOKANE, PERSONAL COMM. 1983}{Deposit:: CONSV. DIV. COMP. DATE, 03-03-1961}{Production:: USBM PROD RECORDS, SPOKANE}
Reporter	Loen, Jeffrey S. (Pearson, Robert C.), Unknown