84439 082GNW022 Fort Steele MIDAS (L.5456), BIG CHIEF (L.4046), MAGNET 082G063 082G12E Past Producer 49° 40' 00'' 115° 30' 14'' 49.666667 -115.503889 11 5502427 608043 Lead, Silver, Gold, Copper Foreland Ancestral North America I05 : Polymetallic veins Ag-Pb-Zn+/-Au At the Midas occurrence, quartz veins occupy joints and fractures within a Cretaceous syenite dyke in Lower-(?)Middle Cambrian Eager Formation argillites. Pyrite, chalcopyrite and galena are hosted by quartz stringers. Visible gold is reported locally. Dykes are highly carbonatized and locally the dyke and host sediments are silicified and carry disseminated pyrite. Dykes strike about 050 degrees and dip 55 degrees northwest. EMPR AR 1899-593,659; 1900-797,979; 1902-130,302; *1934-E30; 1954-148 EMPR ASS RPT 3928, 12247 EMPR GEM 1972-67; 1968-269 EMPR MAP 36 EMPR OF *1988-14 EMPR PF (Prospectors Report 1999-13 by David Javorsky) GSC MAP 396A; 11-1960 GSC MEM 76; *207, p. 50 EMPR PFD 3428, 3429