107 Bear Pass Mining Syndicate (Locality 27) Reference: Annual Report of the Minister of Mines, British Columbia, 1928. The holdings of the Bear Pass Mining Syndicate are on the south side of Strohn creek east of the head of Bear river. A silicified zone in vol- canic rocks is up to 25 feet wide and strikes north. The mineralization consists of pyrite, sphalerite, and galena. Bear River Canyon Mining Company, Limited (Locality 31) References: Annual Report of the Minister of Mines, British Columbia, 1909 and 1910; Geol. Surv., Canada, Memoir 32. The Bear River Canyon Mining Company, Limited, in 1910 explored mineral showings on the Independence and other claims situated on the south side of Bear river 14 miles above its junction with American creek. An adit 150 feet long following a northerly striking fissure zone in sedi- mentary rocks encountered two galena-sphalerite lenses 8 inches wide and 20 feet and 12 feet long. Bear River Mining Company References: Annual Report of the Minister of Mines, British Columbia, 1908, 1910, and 1917; Geol. Surv., Canada, Memoir 32. The Bear River Mining and Development Company was formed in 1908 to develop the London and New York claims which had been staked on a steep mountain on the south side of Upper Bear river because much chalcopyrite float was found at the base of the slope. The Bear River Mining Company in 1910 did development work on these claims. Large areas of rust-stained volcanic rock are sparsely mineralized with pyrite, pyrrhotite, and chalcopyrite. The company drove an adit 100 feet long. Ben Bolt Group (Locality 90) References: Annual Report of the Minister of Mines, British Columbia, 1910, 1911, 1929, 1930, and 1931; Geol. Surv., Canada, Memoirs 32 and 159. The Ben Bolt group of mineral claims is at an elevation of 2,500 feet on the south fork of Glacier creek. The country rock is argillite of the lower part of the sediments of the Hazelton group. The sediments strike northwest and dip gently southwest near the edge of a body of augite por- phyrite. Much development work was done on the property by the Pacific Coast Exploration Company from 1910 to 1912. The property is now held by the Ben Bolt Mining Company. The Ben Bolt group is at the southern end of the exposed portion of the Portland Canal fissure zone which on this group is 100 feet wide, is traceable for 2,000 feet, and consists of silici- fied and crushed slates holding numerous small stringers and lenses of quartz. Assays from a mineralized shoot show 10 to 15 per cent lead, 3 to 8 per cent zinc, and 5 ounces of silver a ton. The approximate relative positions of five adits on the property are indicated in Figure 6. The mineralized zone dips southwestward at a low angle and contains much quartz in stringers and large bodies and is every- where very sparsely mineralized with pyrite, galena, and sphalerite. Drifts