Atlantic Ocean[r]: Second largest ocean in the world; separates the Americas from Europe and Africa. [e]
Appalachian Mountains[r]: North American mountain chain of 2,000+ miles going from central Alabama to Newfoundland, parallel to the Atlantic Ocean, short, rugged, bunched up, a barrier to early European settlers, subject to strip mining and mountaintop removal, and home to the iconic "AT" hiking trail. [e]