To arrive there, Will and I had paddled down the Green River from its Wyoming alpine source to its desert confluence with the Colorado in Utah’s Canyonlands National Park. We crossed Lake Powell ...

Analysis of the Colorado River's terraces using luminescence and isochron dating revealed a pause in incision from 1.8 million to 350,000 years ago, followed by rapid erosion.

Colorado’s Court of Appeals has cleared the way for 80-year-old fisherman Roger Hill to fight for his right to fish in peace on his favorite stretch of the Arkansas River as it flows down from ...