Mine detail: Boss and Atlantus Claims

Previously called 'Unity and Rochester'

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Location

Lat / long:

46.94602, -110.74417

Resource(M)

Primary:	Silver, Lead, Zinc
Secondary:	Gold
Ore:	Galena, Sphalerite, Tetrahedrite
Gangue:	Barite, Quartz
Orebody form:	TABULAR-IRREGULAR
Discovery year:	1884

Production

Operation type:	Unknown
Production size:	Yes
Development status:	Past Producer
First production started:	1956

Geology

Host rock:	Gneiss, Schist
Host type:	Schist,Gneiss
Associated type:	Diorite,Rhyolite
Structure:	Series N-Ne Trending Near-Vertical Fractures

References

MRDS	M060828
DEP	10042795
Reference	{Deposit:: SCHAFER, P.A., 1935, GEOLOGY AND ORE DEPOSITS OF THE NEIHART MINING DISTRICT, CASCADE COUNTY, MONTANA: MONTANA BUREAU OF MINES AND GEOL. MEM. NO. 13, P. 47}{Deposit:: ROBERTSON, A.F., 1951, MINES AND MINERAL DEPOSITS (EXCEPT FUELS) CASCADE COUNTY, MONTANA: U.S. BUREAU OF MINES INFO. CIRC. 7589, P. 24}{Deposit:: WEED, W.H., 1900, GEOLOGY OF THE LITTLE BELT MOUNTAINS, MONT: USGS 20TH ANN. RPT. PT. 3}{Production:: DMEA FILES}
Reporter	Puffett, Willard P.