Did you know that Arizona is home to some of the world's most intriguing volcanoes? These ancient giants, like the San Francisco Peaks, have remained mostly quiet but were once the scene of massive ...

Add Yahoo as a preferred source to see more of our stories on Google. Just 30 minutes from downtown Flagstaff, Sunset Crater Volcano National Monument offers a striking look at northern Arizona’s ...

PHOENIX — A volcano reportedly the size of Arizona was found 1,000 miles off the coast in Japan in the Pacific Ocean. According to Newser, the volcano, Tamu Massif, is Earth’s largest volcano and one ...

Flagstaff's national monuments would open late on Monday, Jan. 8, because of a winter storm that dumped snow in northern Arizona, the National Park Service said. Sunset Crater Volcano National ...

Meteorologist Craig Moeller talks about the big storms rocking Arizona, the Indonesian volcano eruption, and the Thanksgiving weather outlook.