How did fish weirs help Plateau peoples catch fish?

Plateau peoples utilized fish weirs as large, communal structures made of stone or wood to facilitate their fishing practices. These enclosures were strategically placed in rivers to "corral" fish, making them easier to catch. By effectively guiding or trapping the fish within these barriers, the communities could secure the substantial quantities of salmon, trout, and other fish that served as their most important source of food. Once caught, the fish were typically dried on elevated wooden racks to be preserved for winter consumption.1