First Nations groups in Canada are pushing for the restoration of salmon runs in the Columbia River Basin that have been blocked by dams in the United States. Possible solutions, such as using "salmon cannons" to shoot fish upstream and past obstacles, are expensive and may have limited effectiveness. The ongoing negotiations for a modern Columbia River Treaty between the two countries offer an opportunity for First Nations groups to engage with American officials about salmon restoration, but experts suggest that dam removal may be the most reliable way to fully restore natural fish runs.