Millions of years ago, the Green River carved a path through the Uinta Mountains instead of flowing around the formation. Now ...

The governors of six of the seven of the Colorado River Basin states plan to meet Friday in Washington, D.C., in an attempt to break a stalemate in Colorado River water negotiations. Interior ...

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

The finding "may be the hidden answer to more tectonic mysteries than we’ve previously realized," said geologist Adam Smith.

Colorado’s search for the hungry, invasive mussels has revealed populations along the Colorado River. Now it’s time to check ...

For more than a century, the Green River's course through the Uinta Mountains in Utah's northeast has been a geological ...

A careful plan to restore beavers and willows ecology to Rocky Mountain National Park's Kawuneeche Valley is showing progress ...

New research may have solved an American mystery which has baffled geologists for a century and a half: How did a river carve ...

This makes the story of how the Green and Colorado Rivers met so perplexing to geologists like Adam Smith at Scotland’s University of Glasgow. According to the coauthor of his team’s study published ...

The intimidatingly named Gates of Lodore marks the entrance to the 700-metre deep Canyon of Lodore that slices straight ...

Gov. Katie Hobbs heads to Washington on Friday to make her case to a top Trump administration official and other governors ...

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 ...