133 Mountain Boy Group (Locality 19) References: Annual Report of the Minister of Mines, British Columbia, 1910, 1919, 1922, 1928, 1929, and 1980; Geol. Surv., Canada, Memoir 32. Several mineral deposits occur on the property in voleanic rocks. At an elevation of 2,200 feet a fissured zone is replaced by quartz, calcite, barite, sphalerite, galena, pyrite, and chalcopyrite across a width of 25 feet. This body strikes east and dips 50 degrees south. Locally silver values are high. Up hill the deposit seems to end in small stringers and down hill it is covered by talus. Another showing at an elevation of 3,000 feet is up to 8 feet wide. It strikes north and dips 30 degrees west. It consists of quartz, jasper, and barite sparsely mineralized with sulphides, but contains a streak of higher grade ore. This streak is up to 18 inches wide and contains silver minerals as well as galena and sphalerite. Four tons of picked high-grade ore has been shipped and returned about 1,100 ounces of silver a ton. North Fork Basin Group (Locality 100) References: Annual Report of the Minister of Mines, British Columbia, 1916, 1919, and 1924; Geol. Surv., Canada, Memoir 159. The North Fork Basin group of mineral claims is in North Fork basin at an elevation of 4,300 feet, on the south side of the glacier on Kate Ryan creek, Marmot river. The claims are underlain by argillites striking north to northwest and dipping steeply westward. Two veins are exposed in the workings. One strikes north and dips 45 degrees west. An inclined shaft has been sunk 110 feet along the dip of the vein. An adit 80 feet below the shaft collar and 160 feet north has been driven south and joins the bottom of the shaft. The vein is in a shear zone about 3 feet wide and consists of quartz mineralized with pyrite, galena, sphalerite, and tetrahedrite. A fault forms the hanging-wall of the vein, and because of crushing and brecciation along the fault the vein is ill-defined. The other vein is ex- posed in an adit 80 feet south of the shaft. The adit begins on the vein and follows it for 40 feet, at which point the vein is offset by a fault. The vein is 1 foot wide and consists of quartz mineralized with pyrite, galena, sphalerite, and tetrahedrite. A total of 10 tons of ore has been shipped from the northerly striking vein. Two tons in 1919 yielded 200 ounces of silver a ton, 22 per cent lead, and 22 per cent zinc. Hight tons in 1924 returned 115 ounces silver a ton, 11 per cent lead, and 13 per cent zinc. Northern Belle Claim Reference: Geol. Surv., Canada, Memoir 32. The Northern Belle claim is west of the head of the north fork of Glacier creek. A quartzose zone in argillite is 5 feet wide, strikes east, and dips south 40 degrees. It is mineralized with pyrite and chalcopyrite.