The Cascade River is a medium-sized river in southwestern Alberta, Canada. It originates in the Canadian Rockies, flows through Lake Minnewanka, and in turn, joins the Bow River. The Cascade River is formed from the glacial melt of Flints and Bonnet Peaks, as well as Block Mountain. Glacial lakes that drain into the Cascade include Goat Lake, Sawback Lake, Elk Lake, and Cuthead Lake. The river also takes on Stoney Creek before entering the dramatic Stewart Canyon, then draining into Lake Minnewanka.