The Cascade tradition occurred in the plateau region of northwestern United States from 8000 to 5000 BP. The people were semi-sedentary hunters, fishers, and gatherers with a generalized subsistence economy that included deer, elk, bison, antelope, river mussels, and salmon. There might have been seasonal use of plants, too. Cascade sites range from the uplands to the bottoms of river canyons, in open settings and in rock shelters. The classic Cascade lanceolate projectile point is diagnostic of the tradition as well as their semi-subterranean pit houses, among the earliest known examples of such houses.
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North America --Plains and Plateau
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