Whitesail Lake Map-Area The zone is exposed for 200 feet and contains quartz stringers mineralized with chalcopyrite, pyrite, and hematite. An assay of a grab sample of the mineralized material yielded a trace of gold and 7.9 per cent copper. Tesla Mountain Occurrence (25) Reference: B.C. Minister of Mines, Ann. Rept. 1926, pp. 149-150. The occurrence of copper-bearing minerals on Tesla Mountain has been known for many years but because of their isolated location little work, other than prospecting, has been done on them. In 1926, Douglas Lay of the British Columbia Department of Mines made a special trip to visit claims staked there the previous year. He reported on three showings on the mountain all between 5,200 feet and 5,700 feet, and remarked that the actual showings of mineral were somewhat disappointing and that where the veins were wide the values were low, and where the values were high the veins were narrow. No further interest was shown in these occurrences until 1952 when George Young, who held original claims on the mountain, and Andy Ostrem restaked some of the old claims as well as some new ground. There is no record of further activity on the claims. A sample taken by Douglas Lay in 1926 across a 12-inch vein on G. A. Young’s showing assayed 0.133 ounce gold a ton and 4.2 per cent copper. Members of the writer’s party made several traverses on Tesla Mountain in 1948 but none of the showings was seen. Red Bird Mountain Occurrence (22) References: B.C. Minister of Mines, Ann. Repts.: 1929, p. 185; 1945, p. 73. Red Bird Mountain is on the south side of Eutsuk Lake between Mount Haven and Key Mountain. An occurrence of copper on this mountain was reported by B. R. Harrison and J. Worth in 1929 but no work of conse- quence has been done. The writer did not see the showings. Surel Pass Occurrence (19) On the west side of the creek flowing into the head of Surel Lake from Surel Pass, a quartz vein 1 foot to 2 feet wide has been exposed for 25 feet in diorite near its contact with the Hazelton group. The vein strikes north 80 degrees west and dips 42 degrees southwest. It is mineralized mainly by chalcopyrite and pyrite. 100