Years of drought and political brinkmanship have pushed the waterway to the breaking point.

Every winter, snow piles up across the mountains of Colorado, Wyoming, and Utah, building the frozen reservoir that feeds the Colorado River and supplies water to roughly 40 million people in seven ...

Geologists have solved the mystery of the disappearance from the geological record, millions of years ago, of one of North America's most important waterways: the Colorado River. A paper published in ...

FILE: Large swaths of shoreline on Lake Powell that were under water just a few years ago can be seen from the air in this 2022 photo. With less than three weeks to go before a crucial deadline in the ...