Arizona is tussling with other states over how much of the Colorado River it should receive. But how will Arizonans divide its share internally?

The loss of more than 100 lives, many of them children, to Hill Country floods over the July Fourth weekend has shaken Texans ...

The lines in the sand haven't changed, even if warring states are working on a new deal to save the Colorado River.

Meteorologists say the Texas Hill Country is frequently hit with floods, although some officials and residents were caught ...

The simple solution has never been rewriting the interstate compact, as California has always wanted to do, but simply to distribute the water by the existing percentages — based on the river’s actual ...

Colorado River states still have no unified long-term management plan and ‘are just about out of time,’ experts warn Current operation guidelines for the Colorado River, which provides water ...

State negotiators are meeting more often. The Colorado River is a critical source of water for Arizona, providing 36% of the state’s water, according to the Arizona Department of Water Resources.

Millions of dollars in federal funding has been released to continue restoring lands and streams in the fire-scarred Upper ...

If Arizona’s Colorado River water allocation was cut to zero, “we could burn through the available groundwater in 50 years,” Famiglietti said. “We’re talking about decades. That’s scary.

Start the day smarter. Get all the news you need in your inbox each morning. Arizona has taken cuts to its Colorado River water since 2022. But a set of agreements among Arizona’s cities, farms ...