An abiding question among geologists is when was the Grand Canyon carved? When did the Colorado River assume its present course and become the master sculptor of the canyon?

Flagstaff public artist Chip Thomas is among this year’s group of 20 MacArthur Fellows who will receive the no-strings-attached $800,000 grant to further their work.

On today's newscast: AZ Supreme Court tosses lawsuit against Payson, Dewey man gets probation for demonstration assault, developer’s hydropower proposal on Navajo Nation draws scrutiny, and more.

Supporters say the project would bring jobs to communities that need them. Critics are concerned about the environmental impact and the tactics used by the developer and his allies.

Cindy Wilson has transformed her home on Butterfly Lane into a garden oasis in northern Arizona. But after wildfires and flooding hit the area five years ago, she decided to give away her blooms instead.

On today's newscast: Flagstaff police solve 1989 cold case, Arizona SNAP enrollment drops by more than half, Hobbs asks court to pause border wall construction, and more.

On today's newscast: Arizona tribal casino handpicked for human trafficking sting, Slide Rock State Park reopens after wildfire, Scott Thybony encounters a slow flash flood in this month's Canyon Commentary, and more.

In his latest Canyon Commentary, Scott Thybony recounts an unusual encounter with a slow flash flood deep in the Grand Canyon.

In her latest book, McGivney recounts how a 2009 retreat led by rising New Age star James Arthur Ray ended with three people dead after hours in a haphazard sweat lodge.

The affordable housing nonprofit is accepting applications for 10 new starter homes in Flagstaff’s Timber Sky development. It’s the next phase in the project launched last year.