Mine detail: Spanish R Mine

Previously called 'Richmond Claim'

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Location

Lat / long:

44.39718, -103.86864

Resource(M)

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

Production

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

Geology

Host rock:	Pahasapa Limestone
Host type:	Limestone
Associated rock:	Porphyry Intrusions
Associated type:	Plutonic Rock
Alteration processes:	Thoroughly Oxidized Red Gouge

References

MRDS	SD02091
DEP	10104208
Reference	US BUREAU OF MINES, 1954 , BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART I, BUREAU OF MINES INFORMATION CIRCULAR 7688
Reporter	Barari, Rachel A.