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Judges at an annual competition in Keystone picked Denver's water as the best tasting. Louisville and Broomfield were also on the podium.

The Colorado River starts as mountain snow, but climate change has made it harder to predict how much will flow into streams every year. A new study says springtime sun, rain and plants could make it easier.

In Glen Canyon, home to Lake Powell, the shrinking reservoir has revealed areas that were once submerged. These scientists are counting the plants that live there, and have found that they're mostly native.

The Imperial Irrigation District in California is the Colorado River's largest water user. A new conservation plan will spend hundreds of millions to save water, but environmental advocates raised concerns.

Invasive zebra mussels could harm native fish and clog agricultural equipment. Until recently they had never before been seen in the stretch of the Colorado River near Grand Junction.

Negotiations over the water supply for 40 million people are hinged on how you interpret the words "will not cause," written into the century-old Colorado River Compact.

Cities around Phoenix are spending billions to develop water infrastructure. Local leaders say it's a necessary step as the Colorado River shrinks and groundwater dries up.

State, federal and tribal leaders met in Boulder, Colo. to talk about the Colorado River's next chapter. They don't appear close to an agreement.

Some experts say the System Conservation Pilot Program, or SCPP, is costly and may not be the most effective way to save Colorado River water.

New findings about sublimation explain how snow is lost to evaporation before it can melt. The data can help form better predictions about water supplies from the Colorado River.