Why were the Columbia and Fraser rivers important to Plateau peoples?

The Columbia and Fraser rivers were vital to the Plateau Indian peoples primarily because they served as the most important source of food. These river systems provided an abundance of salmon, trout, eels, and other fish, which supported a relatively dense population in the region.12

To maximize this resource, communities utilized various fishing methods, including spears, nets, and traps, as well as large stone or wooden weirs used to corral the catch. Because fishing was so central to their subsistence, Plateau peoples developed techniques to preserve large quantities of fish by drying them on elevated wooden racks for winter consumption.1

Beyond their role in food production, these rivers influenced settlement patterns, as most groups resided in permanent riverside villages. While the rivers were also used for transportation via dugout or bark canoes, long-distance travel was often limited by the presence of numerous rapids.21