Slide in Quebec on the Rimouski River was caused partly by the 14 degree slope (cross section at the top) much steeper than slopes usually associated with quick clay. A layer of soft, silty clay heavily charged with water formed a slip surface. The debris filled river for several thousand feet and created a temporary lake. Hummocky surface is typical of clay slide (Kerr, P.F., 1963, Sci. Amer. Nov., p. 138).
Slump along open water supply ditch from South Saskatchewan River to Qu'Appelle Valley and Buffalo Pound, near Elbow. Note contact between grey Bearpaw below till above; lateral spreading of toe.
