Under the terms of the treaty, Canada controls the flow of the Northwest’s largest river from its headwaters in British ... under that agreement. A map of all Columbia River Basin dams.

Under the terms of the treaty, Canada controls the flow of the Northwest’s largest river from its headwaters in British Columbia, ensuring enough water is sent downstream to meet U.S. hydropower ...

Under the terms of the treaty, Canada controls the flow of the northwest’s largest river from its headwaters in British Columbia, ensuring enough water is sent downstream to meet U.S. hydropower ...