In the 1930s, workers bored a 13-mile tunnel beneath Mt. San Jacinto. Here's a look inside the engineering feat that carries ...

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.

During a tour of the Western Slope last week, U.S. Sen. John Hickenlooper, D-Colo., said he was frustrated with the pace of ...

These are the top 10 most dangerous water bodies across the nation, where natural beauty meets a cautionary dark side.

Phoenix has gained a reputation as a hot, dry and unsustainable city in part because of national media coverage, panelists ...

The Colorado River Authority of Utah, which manages the mighty river for the state, has launched the "Utah Demand Management ...

Every year for the past 25, at least, negotiating teams for the seven states on the Colorado River have worked to overcome a new crisis, invariably driven by two entities: the state of California and ...

Utah is using a technology that can add more water to the state's supply. Others in the Colorado River basin are looking to ...

Dust-on-snow is a major threat to water in the Colorado River, yet no snowmelt forecasts integrate dust-accelerated melt. Using pioneering remote sensing techniques, new research is the first to ...