Roughly 37 miles east of Flagstaff, Meteor Crater—formally known as Barringer Crater—was formed approximately 50,000 years ago by a 150-foot-wide iron meteorite. As one of the best-preserved impact ...

Wikimedia Commons/Ammodramus Murray Springs, Arizona In March 1966, archaeologists C. Vance Haynes Jr. and Peter Mehringer Jr. found the Murray Springs site near a steep-walled gulch in southeastern ...