Fall is one of the best seasons for outdoor adventures. If you’re itching to explore scenic trails and breathe in fresh air, ...

The Arizona State Sun Devils square off against the Grand Canyon Antelopes at Footprint Center in Phoenix, Arizona ...

"The Grand Canyon is an epic Rosetta Stone for geology," Denver Museum of Nature and Science geologist James Hagadorn said.

Supai started life in a pack of wild dogs on the Havasupai Indian Reservation. Here's how she was named the "happiest pet on ...

Historic mistrust and brown, metallic tap water are driving Navajo families in one area of the reservation to spend on bottled water.