State officials may have solved the puzzle of how zebra mussels got into the Colorado River. On July 3, Colorado Parks and ...

Arizona officials are celebrating the passage of new groundwater legislation, but setting their sights on upcoming Colorado ...

As Colorado River states race to finish a deal, water users face a resource altered by drought and climate change.

Colorado's top negotiator said the Bureau of Reclamation must shrink the share of water heading to California, Nevada and ...

An off-duty San Bernardino County sheriff's sergeant who was once honored for heroism is now under criminal investigation, ...

The Bureau of Reclamation is looking at how much water would flow to the Lower Basin states of California, Nevada and Arizona ...

The suspect, a sheriff's sergeant, was arrested on suspicion of drunken boating. The 38-year-old victim is survived by a wife ...

The Colorado River from Glenwood Springs to the Utah border is now considered positive for zebra mussels, an invasive species ...

A San Bernardino County sheriff's sergeant who was once honored for heroism is now under criminal investigation, accused of piloting a boat while intoxicated in an off-duty crash that killed a father ...

Following the release of July’s two-year forecast for the Colorado River Basin, the National Park Service is warning that low ...

The "iconic and magical" cottonwood trees are the keystone species of the plant world and they're disappearing from Utah ...