During the first week of August, 1938, my assistant in British Columbia, Mr. J. K. Jacob, was fortunate in being able to join a party which was penetrating into the little known and rather inaccessible mountain region west of Lytton and the Fraser river. A start was made at the junction of Kwieek Creek and the Fraser river, near the railway station of Boston Bar, about 10 miles south of Lytton; from here the route followed up the creek to Blue Lake situated at an altitude of 7000 feet, at the base of Antimony Mt., where the main camp was pitched.