Arizona’s violent volcanic history, coupled with the Colorado River’s millennia of cutting and churning through the earth’s crust, have left a lot of cool-looking rocks and minerals strewn throughout ...

A research team made a rare discovery near the Santa Cruz River, locating a weapon that dates back to 480 years ago.

Arizona officials say studying a century-old, forced-cuts policy will drive home the risks of water shortages to all Colorado ...

An outcome long held to be unthinkable for the Colorado River Basin — litigation — has entered the realm of the thinkable.

In fact, new research in the journal Restoration Ecology details how scientists have unlocked a breakthrough in their work to ...