Driving through The Cumberland Gap from Tennessee to Kentucky 

The Cumberland Gap is a pass through the long ridge of the Cumberland Mountains, within the Appalachian Mountains, near the junction of the U.S. states of Kentucky, Virginia, and Tennessee. It is famous in American colonial history for its role as a key passageway through the lower central Appalachians.
Long used by Native American nations, the Cumberland Gap was brought to the attention of settlers in 1750 by Thomas Walker, a Virginia physician and explorer. The path was used by a team of frontiersmen led by Daniel Boone, making it accessible to pioneers who used it to journey into the western frontiers of Kentucky and Tennessee.
It was an important part of the Wilderness Road and is now part of the Cumberland Gap National Historical Park.