A new report finds that Lakes Mead and Powell, the nation’s largest reservoirs, could store just 9 percent of their combined ...

The words “urgency” and “immediate action” were used by Trump administration officials on Aug. 15 in releasing the U.S.

The Colorado River basin has lost huge volumes of groundwater over the past two decades according to a new report from researchers at Arizona State University. Researchers used data from NASA ...

If you took a look at a map of Rocky Mountain snow right now you would see a lot of red. The mountains that feed the Colorado River with snowmelt are strikingly dry, with many ranges holding less than ...

With a reddish tint from sediment carried over long miles, the mighty river that carved the Grand Canyon has been known by many names. Some Indigenous peoples called it “Dirty Water.” Spanish ...

The invasive zebra mussel species is spreading across Colorado and could eventually impact drinking water, agriculture and ecosystems if they aren’t eradicated — something experts say is really hard ...

A monsoonal weather system is expected to bring rain to Colorado’s drought-stricken Western Slope in the coming days, dampening wildfires that have charred hundreds of square miles.

State officials may have solved the puzzle of how zebra mussels got into the Colorado River. On July 3, Colorado Parks and Wildlife officials discovered a large number of adult zebra mussels in a ...