Mine detail: Groshong Mine

Previously called 'Silver Queen Group'

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Location

Lat / long:

44.32135, -103.64418

Resource(M)

Primary:	Silver
Secondary:	Lead
Tertiary:	Vanadium
Ore:	Galena, Lead, Silver
Orebody form:	FLATTENED LENTICULAR BODIES CONFORMABLE TO BEDDING

Production

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

Geology

Structure:	The Deadwood Formation Dips 10 Deg Ne And Within The Mine Is 5 - 11 Deg From N 15 Deg W To N 80 Deg E
Alteration processes:	Highly Oxidized Ore To A Soft, Yellow-Brown

References

MRDS	SD02154
DEP	10104226
Reference	{Deposit:: US BUREAU OF MINES, 1954 , BLACK HILLS MINERALS 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.}{Production:: US BUREAU OF MINES, 1954 , BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART I, BUREAU OF MINES, INFORMATION CIRCULAR 7688}
Reporter	Barari, Rachel A.