223 Nothing is known of the precious metal content of the veins, but in view of the fact that almost no exploratory work was done and the lease on the claims was allowed to lapse, it is assumed that assay returns were disappointing. LEAD-COPPER SHOWING NEAR TUTIZZI LAKE The ridge immediately north of the west end of Tutizzi Lake exposes many quartz veins containing lead and copper minerals. One of the best mineralized of these is exposed in an iron-stained zone about 30 feet wide in medium-grained diorite cutting coarse-grained hornblendite and pyroxen- ite. It consists of about 3 feet of brecciated, rusty quartz, which in turn contains a more compact quartz vein with a maximum width of 15 inches, heavily mineralized with galena and chalcopyrite. Assays of two grab samples of this material averaged: gold, 0-0075 ounce a ton; silver, 5:05 ounces a ton; copper, 1-44 per cent; and lead, 50-38 per cent. This vein is exposed for a length of about 30 feet. Quartz veins are numerous in the surrounding area, some attaining a width of 3 feet and a length of several hundred feet. All contain some galena or chalcopyrite, but in general the quantity of sulphides is small, and all the veins sampled gave low gold and silver assays. CHIEF THOMAS SHOWING (16) The Chief Thomas showing consists of a single quartz vein in slightly gneissic quartz diorite, exposed on the south side of a peak east of the headwaters of Etschitka Creek at an elevation of 7,500 feet. The vein is 6 to 10 feet wide, at least 350 feet long, and stands vertically. Sulphide minerals are distributed at intervals across the vein, but are most con- centrated and continuous along the west side of the vein, where 1 foot of quartz and 18 inches of the adjacent rock are heavily impregnated with malachite and contain many blebs and patches of bornite, chalcopyrite, and pyrite. The largest solid sulphide mass observed was 2 by 8 inches in surface area. Part of the quartz is badly fractured and ‘vuggy’, and contains much dark red to specular hematite. Limonite boxworks are well developed in places. Only the western contact of the vein is exposed. Here the wall-rock has been converted, for a width of about a foot, to a fine, compact material composed largely of malachite, flanked by 1 foot to 3 feet of malachite-stained quartz diorite. The vein has not been systematically sampled. Two grab samples, free from the larger sulphide blebs, assayed: gold, trace to 0-015 ounce a ton; silver, trace to 0:27 ounce a ton; and about 1 per cent copper. ELIZABETH GROUP (17) The Elizabeth group, staked in the autumn of 1946 for The Con- solidated Mining and Smelting Company of Canada Limited, covers a shear zone in granodiorite and quartz diorite near the head of the east branch of Etschitka Creek. The zone contains numerous quartz and quartz-carbonate veins, in two intersecting sets, one of which is reported to have provided fairly consistent, but low, assays in gold and silver. No exploratory work was done on the deposit in 1947 or 1948.