Here’s how it works. Sunset Crater, located in north-central Arizona, is the youngest volcano found on the 130,000-square-mile (337,000 square kilometers) Colorado Plateau. In 1930, the Sunset ...

Just north of Flagstaff, an extinct volcano cone and a lava-trail hike ... spread for miles and formed the red cinder cone known as Sunset Crater. It's perhaps the most recognizable of the ...

Social media created hype Wednesday about a plume of smoke reportedly seen rising from Sunset Crater Volcano north of Flagstaff, but Arizonans won't need to take cover from a volcano eruption ...

Around 900 years ago, a volcano – which has come to be called Sunset Crater – erupted and transformed the encircling area. Geologic features like cinders, lava rock and lava flow compose this ...