123 the wider parts of the vein is of much better grade than that in the narrow parts and the highest grade vein matter is displayed in the face of the adit. A long crosscut running northeastward from a point 275 feet from the portal of the adit did not reveal any parallel veins. The face of the adit is 320 feet below the vein at the surface. As some of the dykes in the zone of dykes are younger than the vein they probably interrupt it locally. The lower adit has not been seen by the writer. It is reported that a mineralized zone up to 12 feet wide and containing low values in silver and zinc is exposed in this adit. Initial Group (Locality 34) Reference: Geol. Surv., Canada, Memoir 32. The Initial group of mineral claims is west of the Junction of Bear river and American creek and adjoins and lies south of the Big Casino group. Two mineralized zones 12 feet and 25 feet wide, respectively, con- tain pyrite, chalcopyrite, and galena. International Portland Mining Company (Locality 58) References: Annual Report of the Minister of Mines, British Columbia, 1910; Geol. Surv., Canada, Memoir 32. The holdings of the International Portland Mining Company are west of Bear river, opposite the mouth of Bitter creek. On the Mammoth claim a fissured zone 18 feet wide cuts a band of argillites associated with voleanic rocks. Parts of the zone are mineralized with pyrite, galena, and sphalerite. Farther north on the Dundee claim the same band of argillites is seamed with quartz for a width of 10 feet. Sparse mineralization con- sists of pyrrhotite, galena, sphalerite, and pyrite. On the Ben Lomond claim, higher on the mountainside, volcanic rocks contain pyrite and chal- copyrite in rusty areas and bands. Jutland Group (Locality 62) Reference: Annual Report of the Minister of Mines, British Columbia, 1919. The Jutland group of two mineral claims is on the north fork of Bitter creek and near its head. In one place, at an elevation of 3,200 feet, a quartz vein 18 inches wide contains a streak of galena and tetrahedrite with high silver values. Another narrow quartz vein 300 feet higher con- tains the same minerals and also high values in silver. Kansas Group (Locality 20) References: Annual Report of the Minister of Mines, British Columbia, 1910 and 1914; Geol. Surv., Canada, Memoir 32. The Kansas group is east of American creek about 3 miles from its mouth. A fractured zone up to 6 feet wide in an argillaceous band in vol- eanic rocks is sparsely mineralized with galena but holds a band of galena and tetrahedrite up to 8 inches wide containing high silver values.