16 more pyrite than the other rocks and due to the weathering of the pyrite appear as a rusty band when seen at a distance. All the copper-bearing mineral deposits of the northern half of the Kitsault body lie in the Copper Belt and it lacks deposits of the silver-lead type typical of the adjacent igneous rocks. The rocks of the Copper Belt, because they are in some places quite severely sheared, contrast strongly with the relatively fresh, massive, crystalline rocks that adjoin, Possibly the rocks of the Copper Belt are older than the adjacent igneous rocks and were subjected to shearing prior to the intrusion of the adjoining rocks. The break in the belt at Evindsen creek may be due to faulting that took place prior to the intrusion and eruption of the other rocks, or the belt at this place may have been cut in two by later intrusions. The crystalline rocks of the remaining part of the northern half of the Kitsault body are divisible into dark grey to green rocks and red to purple rocks. They are less sheared than the rocks of the Copper Belt On Evindsen creek the interval between the two parts of the Copper Belt is occupied by red tuff. This red tock is not stratified but is clearly a fine-grained, fragmental rock. It loses its identity a short distance north and south of Evindsen creek. West of the Copper Belt in the northern part of the northern half of the Kitsault body the rocks are mainly intrusives, but bedded fragmental South of Evindsen creek, from the creek to the eastern edge of the Kitsault body, the rocks are hard, massive, and devoid of visible structure. Both purple and green varieties occur and although rock fragments are common in rocks of both colours it is believed that much of the rock forms the core, plug, or neck, of one or more voleanoes, The red tufts previously mentioned may be one of the products of the voleano or volcanoes. The Copper Belt loses its identity a short distance north of East creek. Forming what appears to be a southward continuation is a rock similar crystalline rock. Whether there is a gradual change from augite-free differ in some details, that rose from a common reservoir, and that merge into one another in many places. The band of this feldspathic porphyry containing locally augite phenocrysts and fragments of augite-bearing porphyry continues south from East creek to the head of Red Bluff creek,