"Scroll Down through History" displays the layers of rock exposed within the Grand Canyon and shows when in earth's history they formed. The region where the Grand Canyon now lies begins to ...

New research reveals that canyons near the moon's south pole, similar in size to Arizona's Grand Canyon, were formed in less than 10 minutes by a colossal impact over 3.8 billion years ago. These ...

Formed over thousands of years of erosion caused by hydrothermal activity, water and other natural forces, the Grand Canyon of the Yellowstone is the primary attraction in the Canyon Village ...

The Grand Canyon is the biggest canyon on earth: 277 miles long, 10 miles wide, and a mile deep. It contains some of the oldest exposed rock on earth, Precambrian Vishnu schist, formed 1.7 ...

Small groups of hunters likely traipsed the Grand Canyon region near the end of the last Ice Age, searching for mountain goats, bison, and wild plants. The first recorded group to live in the ...