The Coast Salish Defensive Sites are rock wall features constructed by Coast Salish peoples that have been excavated by Kisha Supernant in 2008 near the Fraser River Canyon, Yale, British Columbia. The functions of these features may have included defense, fishing platforms, and creation of house terraces. House pits and stone tools have been found in association with certain sites. Methods used include use of a total station for mapping the sites as well as the creation of simple test pits to probe for stratigraphy and artifacts.