The researchers assessed waves on the Colorado River in Texas, the Ocmulgee River in Georgia and the Yellowstone River in ...

The Knik River Valley has everything from glacial hikes to horseback rides and dog sledding—and it's a must-visit when visiting Alaska's Denali National Park.

The Colorado River Basin lost an alarming amount of groundwater over the past 20 years, a new study found. Nearly 28 million acre-feet of water has been depleted from the region, nearly the volume of ...