Arizona relies on the Colorado River to feed the nation and keep major cities humming. But the state could be in line for a lot less water soon.

Concerns that reservoirs could reach deadpool levels in the next few years are very real, with water levels down 20 percent over the past century.

How can dusty snowmelt influence future water flow in the Colorado River, which is responsible for supplying water to ...

The battle over an annexation to Colorado Springs, while it already needs more water to meet projected growth, is a recent ...

A new study gives Arizona and Nevada high marks for their reuse of treated sewage effluent as a way to reduce Colorado River ...

The Colorado River and its reservoirs supply water to the 40 million people across the West who rely on the Colorado River.

Western states began divvying up the Colorado’s water, building dams and diverting the flow hundreds of miles, to Los Angeles, San Diego, Phoenix and other fast-growing cities. The river now ...

Previous research has recorded dust-driven melt at individual study sites, but none have measured an area as large as the Colorado River's headwaters that cross multiple states. To level up ...

By the 1960s, the Colorado River no longer reached Mexico, drying up one of North America’s richest ecosystems. More than 80% of its wetlands vanished, leaving behind a desolate landscape.

What happens when one of the nation's largest rivers dries up? Photojournalist Pete McBride tells us about the consequences of a prolonged drought in the Colorado River, which provides drinking ...

Previous research has recorded dust-driven melt at individual study sites, but none have measured an area as large as the Colorado River's headwaters that cross multiple states. To level up ...