52 
Explanation of Plate II. 
View looking north over the upland and the trough of the Otter river, Ttda- 
meen map-area. The point a is 4i miles from the camera. The upland 
in the foreground slopes at the rate of from 240 to 400 feet to the mile 
toward the trough on the left. West of the trough V-shaped canyons, 
of the period after the “great uplift,” may be seen dissecting the upland. 
Profile 5, Figure 2, crosses the foreground. 
