81 borders the stream on the right side for nearly a mile, down to the drift- covered flats through which the stream flows in its lower part. Opposite the lower part of the high bank, thinly drift-covered rock benches occur and a broad, gravelly flat extends north to the head of Canadian creek. In the lower part the drift deposits are over 100 feet thick in places and very largely obscure the topography of the bedrock. A deep bedrock Scs/e of feet ° 7000 2000 3000 : fi : ! ) Contour interval 4O Freee Fecent elluvium Sng tailings Glacial Adrift N Na Bedrock ouvtcrop Geological boundary y 3 7] aa ld Vaverly BS fy prt AS ( (|S hye Biew) Pa Harduptunne: Falls Figure 11. Grouse creek, Cariboo district. channel extending from the head of Quartz gulch through the Waverly hydraulic pits, nearly at right angles to the general course of Grouse creek, was almost entirely concealed by drift deposits before mining operations were undertaken, and was discovered by sinking shafts. The channel is comparatively narrow and steep-sided and averages about 75 feet in depth. In the lower part the bedrock channel is narrower and deeper than in the upper part and has been only partly uncovered by hydraulick- ing. ‘The ground along Grouse creek from the head of the pits up to the