The Fort Yuma-Quechan Indian Tribe is situated at a nexus in the Colorado River Basin. That’s true in a geographic sense. The tribe’s reservation overlays the Arizona-California border near Yuma, Arizona. The two states are heavily reliant on water from the Colorado River. The reservation also abuts the U.S.-Mexico border where the river flows into Mexico for use in cities and on farms. One of the river’s largest irrigation projects, the All-American Canal, was dug through the tribe’s land, and flows from the reservation’s northeastern boundary to its far southwestern corner, on its way to irrigate crops in California’s Imperial Valley. The confluence of the Colorado River and one of its historically important tributaries, the Gila River, is nearby.