Mine detail: Monitor Mine

Previously called ''

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Location

Lat / long:

44.35968, -103.76168

Resource(M)

Primary:	Gold, Silver
Ore:	Gold, Silver
Orebody form:	IRREGULAR BLANKET

Production

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

Geology

Associated rock:	Porphyry Intrusions, Rhyolite
Associated type:	Rhyolite,Plutonic Rock
Alteration processes:	Conglomerate Was Cemented By Pyrite, Which Was Altered To Iron Oxides.

References

MRDS	SD02076
DEP	10055514
Reference	{Deposit:: US BUREAU OF MINES, 1954 , BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART I, BUREAU OF MINES INFORMATION CIRCULAR 7688 .}{Deposit:: SHAPIRO, LEWIS H., AND GRIES, JOHN P., 1970 , ORE DEPOSITS IN ROCKS OF PALEOZOIC AND TERTIARY AGE OF THE NORTHERN BLACK HILLS, SOUTH DAKOTA, SOUTH DAKOTA SCHOOL OF MINES AND TECHNOLOGY.}
Reporter	Barari, Rachel A.