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 ...

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

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

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

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

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

Nebraska is suing Colorado over the amount of water it draws from the South Platte River, the latest in a long history of ...

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.

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

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 ...