The Kettle Falls Archaeological District, spanning the Columbia River between Ferry and Stevens counties, Washington, represents one of the most culturally and historically significant Indigenous sites in the Pacific Northwest. For over 9,000 years, the roaring cascades of Kettle Falls served as a vital ecological and cultural epicenter for the Salish-speaking peoples of the Columbia Plateau, particularly the Colville, Spokane, Kalispel, and Sanpoil tribes. As the second-largest salmon fishery on the Columbia River, the falls attracted thousands of Native Americans annually during the seasonal salmon runs. This massive convergence transformed the area into a major hub for intertribal trade, diplomatic councils, social games, and spiritual ceremonies. Although the physical falls and surrounding encampments were inundated in 1940 by the reservoir of the Grand Coulee Dam (Lake Roosevelt), the district remains a sacred ancestral landscape of immense cultural importance.

In the early 19th century, the existing Indigenous trade networks at Kettle Falls naturally drew Euro-American explorers, fur traders, and missionaries to the area. Canadian explorer David Thompson arrived in 1811, and by 1825, the Hudson's Bay Company had established Fort Colvile nearby, which quickly became the most profitable inland fur-trading post in the Columbia Department. This was followed by the establishment of St. Paul's Mission in 1845 to minister to the tribes gathering at the fishery. Extensive archaeological excavations, conducted primarily before the reservoir was filled and during subsequent seasonal drawdowns, have yielded rich assemblages of projectile points, fishing gear, and trade goods. These resources have provided researchers with invaluable insights into the technological adaptations, trade patterns, and enduring cultural resilience of the region's inhabitants over millennia.