Mine detail: Homestake Mine

Previously called 'ParkmontExcelloGold Dust'

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Location

Lat / long:

45.05603, -109.94551

Resource(M)

Primary:	Gold, Copper
Secondary:	Manganese
Ore:	Chalcopyrite, Copper, Iron
Orebody form:	FLAT-LYING

Production

Operation type:	Unknown
Deposit type:	Contact Metamorphic
Production size:	Yes
Development status:	Past Producer
First production started:	1890

Geology

Host rock:	Gros Ventre Formation Limestone, Shale
Host type:	Limestone
Associated rock:	Monzonite Porphyry
Associated type:	Monzonite
Structure:	Complex Fracturing
Alteration processes:	Limestone Gangue Is Silicified And Highly Altered

References

MRDS	W014659
DEP	10071328
Reference	{Deposit:: REED, G. C., 1950, MINES AND MINERAL DEPOSITS (EXCEPT FUELS) PARK COUNTY, MONTANA: U.S. BUREAU OF MINES INF. CIRC. 754}{Production:: REED, 1950, USBM IC 7546, USBM MINERALS YEARBOOKS 1948-1949}
Reporter	Krohn, Douglas H.