Mine detail: Gold Hill Group Mine

Previously called 'Montreal Group'

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Location

Lat / long:

45.76323, -112.53838

Resource(M)

Primary:	Gold, Silver, Copper
Gangue:	Limonite, Quartz
Orebody form:	IRREGULAR POCKETS AND SHOOTS

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
Production years:	1909-1916
First production started:	1909

Geology

Host rock:	Belt Supergroup
Host type:	Argillite,Limestone
Associated rock:	Butte Quartz Monzonite
Associated type:	Quartz Monzonite,Diorite,Granite
Structure:	Boulder Batholith, Belt Rocks Strike North, Dip 80 W.
Alteration processes:	Oxidation

References

MRDS	DC11790
DEP	10102047
Reference	{Deposit:: USGS BULL 574, P. 90.}{Deposit:: MBMG MEM 25, P. 52-53.}{Deposit:: 1914 RECON WINCHELL, A.N., U.S.G.S. BULL 574}{Deposit:: 1950 GEOLMAP MBMG MEMOIR 32}{Production:: MBMG MEM. 32, P.53.}
Reporter	Unknown, Loen, Jeffrey S. (Pearson, Robert C.)