This aligns with preexisting estimates of when the river probably carved through the Uinta Mountains—creating a canyon that today is 2,297 feet (700 meters) deep—and joined the Colorado system. In ...

The Green River, the largest tributary of the Colorado River, appears to defy gravity for more than 100 miles as it cuts ...

A top California water official offers an inside look as the Trump administration referees a Colorado River stalemate.

Getting your Trinity Audio player ready... Absent a crucial but elusive consensus among the seven Colorado River states, federal authorities are forging ahead with their own ideas on how to divvy up ...

Pueblo Riverwalk Channel Extension and Boathouse Project has been named a finalist for a statewide award.

The town of Meeker this year will be one of a handful Colorado communities hosting a traveling Smithsonian Institution exhibit on Native Americans.

Steamboat Springs author and adventurer Eugene Buchanan has lived near the banks of the Yampa River long enough to notice ...

NPCA answers frequently asked questions about the latest attempt by Cadiz Inc. to drain the Mojave Desert’s groundwater for profit.

Absent a crucial but elusive consensus among the seven Colorado River states, federal authorities are forging ahead with their own ideas on how to divvy up painful water cuts as climate change ...

Few know about this gigantic Arizona cave, where a hidden beach waits to surprise adventurous visitors seeking something ...

The Colorado River once flowed freely. Then came Laguna Dam. This video explores the overlooked structure that stopped the river and shifted the course of Western history—dividing states, stopping ...

Transfer Colorado Buffaloes defensive end Immanuel Ezeogu turned heads with a blistering 40-yard dash during his first practice in Boulder.