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

CPW coordinates efforts to combat invasive zebra mussels in Colorado, using a copper-based molluscicide and intensive river ...

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

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

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, ...

A new, meager water supply forecast is making waves along the Colorado River’s multibillion-dollar recreation industry, too.

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

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

The "iconic and magical" cottonwood trees are the keystone species of the plant world and they're disappearing from Utah riverbanks. Scientists are trying to protect thembut budget freezes by ...