Arizona's hidden canyons rival the Grand Canyon in beauty and are worth visiting. Ramsey Canyon features high canyon walls, a spring-fed stream, and arid grasslands, while Secret Canyon has ...

These hidden gems in Arizona are picture perfect in every way. Come explore historic sites, mesmerizing lakes, and even a ...

The Earth's Grand Canyon took millions of years to carve, but the moon's grand canyons took about ten minutes.

Two Grand Canyon-size features on the far side of the moon were likely formed in about 10 minutes after an unknown object ...

Two canyons that splay out from a vast asteroid crater on the moon may have been quickly formed by chains of impacts that followed the initial one ...

Canyon de Chelly, a national monument since 1931, sprawls fingerlike across roughly 84,000 acres of northeastern Arizona, near the town of Chinle, about a 3 1/2-hour drive from either Albuquerque ...