Though it's still only a national monument, this incredible "Wonderland of Rocks" in Arizona has a strong claim for being America's next national park ...

A new study suggests a meteor strike that created Arizona’s Meteor Crater 56,000 years ago may have triggered a massive ...

The paper suggests that a dam created a 50-mile-long, 300-foot-deep paleolake with beavers' tracks in caves above the river, indicating a significant geological event possibly related to Barringer ...