The W.A.C. Bennett Dam backs up a reservoir for 70 miles on the _____ River and another 170 miles on two major tributaries, the Finlay and Parsnip River. Much of the power is transmitted 600 miles to metropolitan _____, the largest population concentration in western Canada. Peace/ Vancouver A hotspot is a place where the earth's crust moved over a fixed position in the mantle. The wide valley of _____ to Yellowstone is the telltale path over which the hotspot has progressed over hundreds of thousands of years. the Snake River plain Interstate 80, which parallels the Union Pacific railway route, vies with Interstate 40, which passes _____ as the most heavily used east-west roadway. through New Mexico around the southern end of the Rockies Large sawmills and pulp mills operate at several localities in western _____ and northern _____. Montana/ Idaho _____-slopes receive more direct sunlight than other slopes, which make for more rapid evaporation and reduces the effectiveness of the rainfall or snowmelt received on that side. South The most notable irrigated valley in the Rockies, and one of Canada's most distinctive specialty crop areas, occupies the long narrow trench of the _____ Valley. Okanagan The _____ contain extensive present-day mountain glaciers and even some upland icefields--from which lengthy glaciers extend down valley. Ridges and valleys are more or less uniform in elevation and tend to parallel one another for long stretches in a general northwest-southeast trend. These ranges provide some of the most spectacular scenery on the continent. Canadian Rockies Eleven rivers, including the upper reaches of both the Columbia and the _____, occupy some portion of the Rocky Mountain Trench.