64380 082GNW008 082G13 Zn1 Fort Steele ESTELLA (L.6411), ESTELLA MINE 082G072 082G13E Past Producer 49° 46' 10'' 115° 36' 19'' 49.769444 -115.605278 11 5513712 600514 Silver, Lead, Zinc, Cadmium, Copper, Gold Foreland Ancestral North America I05 : Polymetallic veins Ag-Pb-Zn+/-Au The Estella deposit is a vein-type consisting of massive galena, sphalerite, and pyrite in a zone of fracturing and shearing within Helikian Aldridge Formation (Purcell Supergroup) quartzites and argillites. The fracture zone with the sulphide mineralization is spatially related to the contact of a Mesozoic syenite stock. Quartz is not abundant within the sulphide ore but exists in crosscutting veinlets which carry little or no sulphide. The lode ranges from a single fracture of several centimetres to a zone 4 to 6 metres wide. Locally the ore zone and/or the host stratigraphy is strongly silicified. Although there were sulphides remaining when production ceased, these were for the most part contained in the narrower portions of the fracture systems and hence would not constitute economically recoverable reserves. EMPR AR 1896-522; 1897-526; 1898-1031; 1899-593,659; 1900-797; 1901-1005; 1902-130; 1903-93; 1904-108; 1905-248; 1910-90; 1916-191; 1920-140; 1927-266; 1929-297; 1950-155; 1951-40, 186; 1952-42,199; 1953-45,150; 1954-49,148; 1955-70; 1958-A45,61; 1959-A47; 1962-87; 1963-A48,82; 1964-133; 1966- 241; 1967-272 EMPR ASS RPT 68, *8835, 19671, 20175 EMPR FIELDWORK *1977, p. 15 EMPR GEM 1970-472 EMPR MAP 36 EMPR OF *1988-14 EMPR PF (*Underground Workings, Assay Plan (1951), Development Workings, Vertical Section, Assay Plan) EMR MP CORPFILE (United Estella Mines Ltd.; Copper Soo Mining Co.; Giant Mascot Mines Ltd.; Giant Soo Mines Ltd.) GSC MAP 11-1960 GSC MEM 76 GSC P 58-10 EMPR PFD 900216, 1885, 3449, 3450, 3451, 3452, 3453, 3454, 3455, 3456, 3457, 3458, 752028, 752753, 752754, 752755, 752756, 752757, 752758, 752759, 752760, 752761, 752762, 752763, 752764, 752765, 752766, 752767, 885058, 800015, 800016, 800044, 800045, 800334, 600080, 600081, 802639, 822748, 503413, 827914