Mine detail: Gilt Edge Mine

Previously called 'Gilt Edge GroupVirgin GulchHeath MillTurtle Winds Shaft'

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Location

Lat / long:

47.14409, -109.22718

Resource(M)

Primary:	Gold
Secondary:	Silver
Gangue:	Pyrite
Orebody form:	POD/LENS
Discovery year:	1883

Production

Operation type:	Surface-Underground
Deposit type:	Au-Ag-Te vein
Production size:	Yes
Development status:	Past Producer
First production started:	1883

Geology

Host rock:	Madison Limestone;Kibby Sandstone
Host type:	Limestone
Associated rock:	Quartz Monzonite Porphyry Stock;Rhyolite Porphyry Dikes
Associated type:	Rhyolite
Structure:	Large Laccolithic And Stock Intrusives Of Rhyolite And Quartz Monzonite, Doming And Faulting Produced By The Alpine Gulch Stock. Numerous Small Rhyolite Dikes.
Tectonic:	Rocky Mountain Foreland
Alteration processes:	Oxidation, Kaolinization

References

MRDS	W014640
DEP	10071313
Reference	{Deposit:: FORREST, R. A., 1971, GEOLOGY AND MINERAL DEPOSITS OF THE WARM SPRINGS - GILT EDGE DISTRICT, FERGUS COUNTY, MONTANA M. S. THESIS MONTANA TECH, BUTTE MONTANA}{Deposit:: ROBERTSON, A. F., 1950, MINES AND MINERAL DEPOSITS, FERGUS COUNTY, MONT.: U. S. BUREAU OF MINES INF. CIRC. 7544}{Production:: FORREST, 1971; USBM INF. CIRC. 7544}
Reporter	Swanson, Leroy J.; Krohn, D. H.