The climbing season on Mount Everest peaks in late May and early June every year. Extreme weather patterns at this location ...

Flows on the Big Hole River are well below normal due to hot temperatures, rapid snowmelt and meager precipitation. The low flows could lead to fishing restrictions earlier than usual.

Explore the future of Southeast Asia through the lens of the Mekong River and its deep impact on local communities.

A Tucson Water project will return a regular water flow — albeit for about 5,000 feet — into the Santa Cruz River near Silverlake Road. Kelly Presnell / Arizona Daily Star ...