The federal government is expected to announce water cuts soon that would affect some of the 40 million people reliant on the Colorado River, the powerhouse of the U.S. West. The Interior Department announces water availability for the coming year months in advance so Western cities, farmers and others can plan. Behind the scenes, however, more elusive plans are being hashed out: how the basin will share water from the diminishing 1,450-mile (2,334-kilometer) river after 2026, when many current guidelines that govern it expire. The Colorado River supplies water to seven Western states, more than two dozen Native American tribes, and two states in Mexico. It also irrigates millions of acres of farmland in the American West and generates hydropower used across the region. Years of overuse combined with rising temperatures and drought have meant less water flows in the Colorado today than in decades past.

Related Colorado River articles:

• Aspen Journalism: Upper Basin states propose MOU with U.S. Bureau of Reclamation
• The Denver Gazette: Colorado water rights: A complex system and pricey process
• Vail Daily: Low-flying helicopters plan to survey Colorado’s 2-billion-year-old geological history