Explore the Appalachian Mountains: discover their location, ancient formation, and significant ecological impact on Eastern ...

Explore Tennessee's diverse geography, from the Appalachian Mountains to the Mississippi River. Learn about its history, ...

The Appalachian Trail, or AT, stretches more than 2,000 miles along the U.S. East Coast. Completed in 1937, the longest marked trail in the country runs from Georgia to Maine, connecting 14 states ...

National Geographic was paid $80,000 by the commission to develop the new map, which was distributed this spring to 865,000 subscribers of National Geographic Traveler.

And many people believe the high rate of mysterious phenomena in the Appalachian Mountains, a 2,000-mile range that spans Newfoundland to northern Alabama, is due to their geological age.

The Appalachian Trail stretches more than 2,000 miles along the US East Coast. Each year, thousands of people attempt to hike it, but only one in four succeeds.