The Colorado River Basin covers more than 246,000 square miles in seven states. It's governed by the Colorado River Compact, a century-old agreement allocating water to the states and Mexico.

For 2023, runoff in the Missouri River basin above Sioux City, Iowa, is forecast to be 20.8 MAF or 81% of average, the Corps said on Jan. 6.

This year was the first time a shortage was declared in the almost 100-year history of the Colorado River Compact, which governs water allotments to the seven states in the basin.

Rivers in southwestern Montana face dangerously high temperatures in summer months, spelling trouble for native trout ...

“Think of the Colorado River Basin as a slow-motion disaster,” said Kevin Moran, who directs state and federal water policy advocacy at the Environmental Defense Fund.

The Texas Hill Country has been notorious for flash floods caused by the Guadalupe River. Here's why the area is called ...

All seven states in the Colorado River Basin now agree on an apparent short-term breakthrough in negotiations to save water from their drying region and it’s enough of a consensus for federal ...

Rising temperatures have sucked more than 10 trillion gallons of water out of the Colorado River Basin between 2000 and 2021 – a volume about the size of Lake Mead – according to a recent study.

The amount of groundwater that has been pumped out of the Colorado River Basin since 2003 is enough to fill Lake Mead, researchers report in a study published earlier this week.

The Colorado River Basin’s groundwater supplies are dwindling, thanks to a combination of both natural events and human pumping activities, a new study has found. The critical Western system has ...

Shanna Lewis/KRCC News Hundreds of water managers and water users attended the 30th Annual Arkansas River Basin Water Forum in Pueblo, Colo., on March 5, 2025 Heather Dutton leads the San Luis ...