Mine detail: Grant and Hartford Mine

Previously called ''

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Location

Lat / long:

46.82295, -113.3376

Resource(B)

Primary:	Gold, Silver
Secondary:	Copper, Lead
Tertiary:	Antimony, Barium-Barite
Ore:	Chalcopyrite, Gold, Tetrahedrite
Gangue:	Ankerite, Barite, Calcite, Pyrite, Quartz
Orebody form:	TABULAR VEIN WITH BANDED STRUCTURE THAT FOR THE MOST PART FOLLOWS THE BEDDING PLANE

Production

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

Geology

Host rock:	Silver Hill Formation;Flathead Formation;Garnet Range Formation, Micaceous Quartzite;Missoula Group
Host type:	Quartzite,Schist
Associated rock:	Garnet Stock
Associated type:	Diorite
Structure:	Bearmouth Overthrust, Deep Creek Anticline, Mount Baldy Synclinorium, Deep Creek Anticline.
Tectonic:	Cordilleran Miogeosyncline
Alteration processes:	Oxidation

References

MRDS	W014685
DEP	10071351
Reference	{Deposit:: USGS BULL 660, P. 188}{Deposit:: MBMG MEM NO 39, P. 28}{Deposit:: MBMG MEM NO 31, P. 30}{Production:: USGS BULL. 660-F, MBMG MEM. 39}
Reporter	Krohn, Douglas H., Wise, Kristine K. (Elliott, James E.)