America's largest reservoir reckons with a hotter world.

Troubling forecasts, unusual heat, and a harmful algal bloom are among the concerns the reservoir has faced this month.

Not only is Lake Mead under a harmful algal bloom warning, but it is also storing less water than it did at this time last ...

"Children and pets are at higher risk if contaminated water is swallowed," the National Park Service cautioned.

Arizona Gov. Katie Hobbs signaled the state's intent to fight for Colorado River water by hiring a New York-based law firm.

Out in the Avra Valley, about 30 miles northwest of Tucson, a wide swath of water pours down a fenced-off canal about 80 feet wide.

The heat wave was felt the hardest in the Southwestern region of the U.S. as Arizona and California set the record for the ...

Arizona is preparing for a legal battle over its rights to Colorado River water. Following an extraordinarily dry winter ...

River managers need to conserve around 1.7 million acre-feet in Lake Powell to keep the reservoir from dropping below ...

A new superintendent, an update on Government Wash and opportunities to volunteer were all part of an online-only Lake Mead community meeting on Wednesday.