Bureau of Reclamation

Federal officials will not release cool water from Glen Canyon Dam, which would have protected a threatened native fish downstream but put more strain on already struggling hydropower production.

An ongoing deadlock between the seven states that rely on the Colorado River may have dire consequences for Arizona.

A group of environmental advocates sent a petition to the federal government with a simple, seemingly obvious message: Ensure that water from the Colorado River is only being delivered for reasonable and beneficial uses.

Trump has picked former Central Arizona Project manager Ted Cooke as the next commissioner of the U.S. Bureau of Reclamation. If confirmed, he will be the main federal official overseeing Colorado River matters.

Federal agencies have finished digging out a side channel below Glen Canyon Dam that's been a breeding ground for nonnative fish.

Arizona will continue to take a hit on its Colorado River allotment next year as western states struggle to deal with dire drought conditions.

Tribes that use the Colorado River want a say in negotiations that will reshape how the river's water is shared.

A Native American tribe that uses water from the Colorado River says it doesn't support a proposal from Arizona California, and Nevada for managing the river’s supply in the future. The Gila River Indian Community in Arizona is working on its own proposal.

The states that use water from the Colorado River have proposed competing plans for managing the river.

Federal officials this week are expected to ease water cuts for 2024 under a slightly improved outlook for the Colorado River’s health, though long-term challenges remain.