But the city, which gets 40 percent of its water supplies from the Colorado River, is one of the most legally vulnerable ...

As western water leaders prepare to gather in Las Vegas, tribal leaders say they want a say in a final agreement.

Interior officials are losing their patience with states as the West’s most important river teeters on the brink of crisis.

Three people were hospitalized after a boat crashed into a sandbar on the Colorado River in western Arizona on Friday.

The Trump Administration is urging the seven states that use the Colorado River to come up with a new agreement, or it would ...

A new report describes the dire conditions on the Colorado River and says states can no longer afford to "kick the can" down ...

Farms and cities use so much of the Colorado River's water that little remains for the river's own ecosystem. Will ...

The Democratic governor of a state Trump flipped in 2024 has been inviting politics into the battle over the Colorado River.

The federal government is providing water to some large agricultural districts for free. In a new study, researchers urge the ...

These reductions are real. In 2023, Arizona, California and Nevada used only 5.8 million acre-feet of Colorado River water – their lowest combined annual consumption since 1983. The Lower Basin’s ...

The future of the Colorado River — a vital water source for 80% of Central and Southern Arizona — is more uncertain than ever ...

Federal officials gave the clearest timeline yet for when a breakthrough could come in closed-door negotiations over the ...