69 A fault lies along the north side of the granodiorite stock at its contact with volcanic rocks, which outcrop on the north side of the pass. The fault strikes east and dips 70 degrees south. It is best exposed in an open-cut at elevation 5,000 feet, where there is 8 feet of sheared, rusted, altered rock. Elswhere the fault is concealed by drift. Josie Claim (47) The Josie claim is on the east shoulder of a cirque immediately east of the Van Anda claim of the Silver Creek group. A trail leads up to the workings from the lowest crosscut adit on the Silver Creek group. At elevation 5,300 feet two parallel sulphide veins in andesite are prospected by an open-cut and a 6-foot adit. The veins are 20 inches apart and range from 1 to 8 inches in width. They are composed of sphalerite, pyrrhotite, and pyrite. The veins strike north 70 degrees east and dip 57 degrees southeast. They are covered by talus 10 feet west of the open-cut and pinch out 20 feet east of the cut. Another sulphide vein outcrops 50 feet higher up the slope in similar andesitic rock. This vein is 50 feet long and averages 6 inches in width, but at the open-cut midway along its outcrop narrow mineralized fissures extend over a maximum width of 3 feet. The vein strikes north 40 degrees east and dips 65 degrees southeast. It consists largely of dark, solid sphalerite with minor pyrrhotite and pyrite. Matuss Claim (48) This property, owned by Joe Matuss, of Driftwood, is about 8 miles due northwest of Smithers, on the west side near the foot of the Toboggan Creek glacier. A trail half a mile long leads southeast to the claim from Schufer Lake on the tractor road to the Silver Creek group. At elevation 4,600 feet an adit has been driven 90 feet along a quartz- arsenopyrite vein that lies in a shear zone in massive andesites. The shear zone is exposed for 500 feet up a 35-degree slope and contains vein filling for most of this distance. The vein strikes southwest and dips from 50 to 70 degrees southeast. About 425 feet north of the adit the volcanic rocks are in sharp contact with shales, argillites, and greywacke. The voleanic rocks are hard, tough, and resistant, whereas the sediments are soft, characteristically rust-stained, and form small slabs as a result of weathering. The upper surface of the andesite beneath the sediments is smooth, but is irregular with depressions up to a foot in depth and anywhere from 5 to 25 feet in diameter. These are filled by fine argillite, which grades up into coarse greywacke composed largely of rounded grains of andesite. The greywacke is succeeded by dark slate. At the contact these formations strike west and dip 70 degrees north. Both the volcanic and sedimentary rocks are intruded by light-coloured quartz-albite porphyry dykes, most of which range from 4 to 10 feet in width and from 500 to 1,000 feet in length. One of these dykes, 7 feet in width, intersects the vein 15 feet from the portal of the adit. The dyke is clearly later than the fissuring.