My adventure through this incredible national park saw thrilling rafting adventures, scenic hikes, and some of the oldest landscapes in America.

As the Colorado River’s reservoirs have declined, even larger amounts of groundwater have been drained from aquifers. Using satellite data, scientists have estimated the vast water losses.

The Columbia River Gorge is 10 minutes from Portland and home to the highest concentration of waterfalls in North America. Here's what to know before you go.

The 120-mile Tijuana River flows from Baja California into the United States and discharges millions of gallons of wastewater—including sewage, industrial waste and runoff—into the Pacific ...

Fishing requirements. For the stretches of the Columbia River upstream of Bonneville Dam to approx. 200’ above the fish ladder exit upstream to Hwy 730 at the Washington/Oregon border, the ...

The U.S. Army Corps of Engineers is preparing for the Mississippi River to reach some of its highest water levels in recent years in New Orleans and Baton Rouge. According to forecasts, the river ...