Mountain West News Bureau

Along the Colorado River, 30 federally recognized tribes have legal and cultural claims. Yet they have no formal seat in negotiations.

Widespread cuts and uncertainty could await cities, farms and ranches if a dispute heads to the Supreme Court

A federal plan for the Colorado River means big water cuts for Arizona. The Phoenix and Tucson areas will be hit hard. City leaders say they can keep taps flowing, but solutions will be expensive.

The federal government finalized new rules Friday to operate the Colorado River’s biggest reservoirs in the next two years. The Bureau of Reclamation’s plan calls for California, Arizona and Nevada to take significant cuts to their water supply from the river, at least in the short term.

Federal wildlife officials downlisted the razorback sucker to threatened status, but its life in Arizona rivers is still difficult.

Nathan Matthews had been hospitalized since he was caught in a burnover on June 27.

More than 56 million acres — nearly 3% of the U.S. landmass — belong to tribes. The Land and Water Conservation Fund has aided more than 47,000 projects, like parks and trails, in nearly every county nationwide.

Federal land officials are considering whether to remove almost 2,000 wild horses from Wyoming's Red Desert. They say the population has exceeded appropriate levels for the habitat, potentially leading to environmental harm.

Water experts are calling for urgent changes at Lake Powell and Lake Mead, as a dry winter could send reservoir levels dangerously low.

A team of researchers at Arizona State University is building models to track the amount of water in snow, soils and streams.