Montana · Granite County
Past Producer

Red Cloud Group

Granite County, Montana, United States
GoldSilverCopperLeadMolybdenumBarium-BariteAntimony
⌖ Show on mapUSGS source ↗
Commodities
PrimaryGold, Silver
SecondaryCopper, Lead
TertiaryMolybdenum, Barium-Barite, Antimony
Commodity typeB
Deposit
Deposit typeReplacement Vein
Deposit sizeS
WorkingsUnderground
Orebody formTABULAR-VEIN HAS BANDED STRUCTURE RED CLOUD VEIN LIES ALONG THE BEDDING PLANE
Ore controlDeep Creek Anticline, Garnet Stock, Garnet Range Fm.
Materials
Ore mineralsChalcopyrite, Galena, Gold, Molybdenite, Tetrahedrite
GangueBarite, Limonite, Pyrite, Quartz
Geology
Host rockQuartzite,Schist · Silver Hill Formation;Flathead Formation;Garnet Range Formation;Mcnamara Formation
Associated rockDiorite · Garnet Stock
StructureBearmouth Overthrust, Deep Creek Anticline, Mount Baldy Synclinorium., Vein Lies On Bedding Plane On Northern Limb And Near Crest Of Deep Creek Anticline Which Here Trends About N 80 W And Plunges About 30 W. Vein Is About 200 M North Of Axis Of Anticline. Vein Is Cut By Small Northeastery Normal Faults. Some Postmineral Movement Has Taken Place In The Plane Of The Vein.
Tectonic settingCordilleran Miogeosyncline
AlterationSericitization, Oxidation
Economic & production
Development statusPast Producer
First production1897
Discovery year1867
Identification
Deposit ID10071324
MRDS IDW014655
Alternate namesRed Cloud, Crescent, Lead King
RegionNA
Data scoreB
Coordinates46.81961, -113.33982
References
USGS BULL 660 , P. 190-94, PL. 1X.MBMG MEM NO 39, P. 28MBMG MEM NO 31, P. 31MBMG MEM. 31, MBMG MEM. 39, USGS BULL. 660-F