Mine detail: Senator Stewart Mine

Previously called 'Stewart'

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Location

Lat / long:

47.52097, -116.17043

Resource(M)

Primary:	Silver, Zinc, Lead
Secondary:	Copper
Tertiary:	Gold
Ore:	Galena, Tetrahedrite, Sphalerite
Gangue:	Siderite, Ankerite, Pyrite
Orebody form:	PINCH AND SWELL
Discovery year:	1896

Production

Operation type:	Underground
Deposit type:	HYDROTHERMAL VEIN AND REPLACEMENT
Production size:	Medium
Development status:	Past Producer
Production years:	1904-1907, 1910-1922, 1924-1928, 1930-1931, 1946-1951
First production started:	1904
Last production ended:	1951

Geology

Host rock:	Revett Formation
Host type:	Quartzite
Structure:	Osburn Fault and West Fault, WNW striking shears., NE-trending faults that link the Osburn and West Faults., Deposit within overturned NE limb of a WNW-trending anticline.
Tectonic:	Belt Basin
Alteration processes:	Upper levels of orebody oxidized.

References

MRDS	W019399
DEP	10073355
Reference	{Deposit:: UMPLEBY, J. B., AND JONES, E. L., JR., 1923 , GEOLOGY AND ORE DEPOSITS OF SHOSHONE COUNTY, IDAHO: USGS BULL. 732 , 156 P.}{Deposit:: RANSOME, F. L., AND CALKINS, F. C., 1908 , THE GEOLOGY AND ORE DEPOSITS OF THE COEUR *LENE DISTRICT, IDAHO: USGS PROF. PAPER 62 , 203 P.}{Deposit:: Kennedy, G.A., 1912, Report on the Steart mine, property of the Stewart Mining Company, Coeur *lene minind district, Shoshone County, Idaho, 34 p.; supplementary report, 1913, 29 p.}{Production:: Mitchell, V.E., and Bennett, E.H., 1983, Production statistics for the Coeur *lene mining district, Shoshone County, Idaho, 1884-1980: Idaho Geological Survey Technical Report 83-3, 33 p.}
Reporter	Miller, Pat J., Western Field Operations Center, Keith R. Long