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

Zebra mussels are similar to another invasive mollusk, the quagga mussel, which has not been detected in Colorado’s lakes and ...

Water managers and state wildlife officials last year hoped the discovery of a microscopic zebra mussel larva in the Colorado ...

Nebraska officials on Wednesday announced a lawsuit against Colorado, alleging the Centennial State is allowing “unlawful ...

The seven states that share the drought-stricken river are aiming for an agreement before a November deadline set by the Bureau of Reclamation.

An Arizona man, Thomas Michael McCluney, drowned in the Colorado River in Bullhead City. Police report the incident as ...

Western Wyoming irrigators are frustrated after being shut off earlier than normal to send Colorado River Basin water ...

A new round of samples shows the Colorado River "positive" overall for zebra mussels, as state officials scramble to contain ...

A man who reportedly tired while swimming in the Colorado River at Rotary Park on Saturday was rescued by first responders.

As the Colorado River dries up, states can’t agree on saving water. The river’s biggest water user, California, didn’t join six states in a proposal to cut some 2 million acre-feet of usage ...

A man is dead after drowning in the Colorado River in Bullhead City on Thursday. The Bullhead City Police Department’s ...