Millions of years ago, the Green River carved a path through the Uinta Mountains instead of flowing around the formation. Now, researchers have discovered how this could have happened.

The headwaters of the mighty Colorado River start in clear, cold mountain streams fed by snowmelt from jagged Rocky Mountain peaks. But those peaks are in the grip of a winter snow drought and its bad ...

The Green River, the largest tributary of the Colorado River, appears to defy gravity for more than 100 miles as it cuts straight across the Uinta Mountains instead of taking an easier downhill path ...

Some Colorado River Basin states appear to be bracing for litigation as the deadline for a plan all seven states can agree to ...

Live Science reports that a long mystery about the Green River, the largest tributary to the Colorado River, is closer to being solved as new research offers an explanation of the river’s ancient, ...

The Colorado River is in trouble: Not as much water flows into the river as people are entitled to take out of it. A new idea might change that, but complicated political and practical negotiations ...

On the headwaters of the Colorado River, water managers fear they are on the brink of a system failure as drought and climate change rewrite the old rules. Winter snowpack is no longer a reliable ...

While Arizonans continue to watch the battle for their water from the Colorado River play out, that water itself is having other issues this winter.

Millions of years ago, the Green River carved a path through the Uinta Mountains instead of flowing around the formation. Now, researchers have discovered how this could have happened. When you ...

Some Colorado River Basin states appear to be bracing for litigation as the deadline for a plan all seven states can agree to looms — with no agreement ...