Under Biden last year, the U.S. Bureau of Reclamation finalized a decision to allow releases of water to bypass Glen Canyon Dam’s hydropower infrastructure to curb invasive fish populations.

To critics, Glen Canyon Dam was one of the U.S.'s biggest environmental mistakes. But it generates electricity for about 5 million people in seven states.

Podcaster Show PlayerArchaeologists and naturalists hastened to detail the canyon’s contents even as the Glen Canyon Dam was under construction. By the time the waters of Lake Powell began to ...

The clock is ticking on the Colorado River. The seven states that use its water are nearing a 2026 deadline to come up with ...

Invasive smallmouth bass have threatened native fish in the Colorado River as it flows through the Grand Canyon. Federal officials recently cleared out a warm backwater below Glen Canyon Dam where ...

Before the recent project, those fish would gravitate toward ... Still, experts say removing it is only one step toward dealing with invasives below Glen Canyon Dam. In recent years, the dam has sent ...

California and six other states that use water from the Colorado River are nearing a 2026 deadline to come up with new rules for sharing shrinking supplies.

These actions should prevent Lake Powell from falling so low in the near future that Glen Canyon Dam’s power-generating turbines would have to be shut off.

The Southwest and Rocky Mountain states are reviewing a plan that could split Colorado River water based on actual flows, not storage.

Arizona’s water chief is offering a new path out of the morass in Colorado River negotiations — a proposal to tie future ...

Here is what to expect when traveling throughout Arizona on July Fourth Day weekend, including traffic issues, event coverage and weather updates.