Commodities
PrimaryGold, Silver
TertiaryCopper, Bismuth, Tungsten
Commodity typeM
Deposit
Deposit typeVein
Deposit sizeS
WorkingsSurface/Underground
Orebody formPINCH AND SWELL, LENTICULAR
Ore controlShear Zone, Fracture
Materials
Ore mineralsBismuth, Chalcopyrite
GangueLimonite, Pyrite, Quartz
Geology
Host rockSyenite,Quartzite,Gneiss · Yellowjacket Formation-Argillite, Quartzite, Schist
Associated rockSyenite,Diorite,Quartzite · Idaho Batholith-Quartz, Gneissic Diorite;Ramey Ridge Complex-Syenite
AlterationFe Stains, Oxidation, Chloritization
Economic & production
Development statusPast Producer
Discovery year1906
Identification
Deposit ID10071565
MRDS IDW015023
Alternate namesMildred, Estep, Arrastre
RegionNA
Data scoreB
Coordinates45.20428, -115.24566
References
Lorain, S. H., 1938, Gold Mining And Milling In Idaho County, Idaho: USBM Inf. Circ. 7039, 90 P.Cater, F. W., And Others, 1973, Mineral Resources Of The Idaho Primitive Area And Vicinity, Idaho: USGS Bulletin 1304, 431 P.Shenon, P. J., And Ross, C. P., 1936, Geology And Ore Deposits Near Edwardsburg And Thunder Mountain, Idaho: Idaho Bureau Of Mines And Geology Pamphlet 44, 45 P.1936 Geolmap Idaho Bureau Of Mines And Geology Pamphlet 441938 Recon USBM Inf. Circ. 70391973 Recon F. W. Cater And Others, Bulletin 1304Cater, F. W., And Others, 1973, USGS Bulletin 1304