Appalachian Mountains Peak Mount Mitchell Elevation 6,684 ft (2,037 m) Length 1,500 mi (2,400 km) Countries United States, Canada and France Regions Newfoundland and Labrador , Saint Pierre and Miquelon , Québec , Nova Scotia , New Brunswick , Maine , New Hampshire , Vermont , Massachusetts , Connecticut , New York , New Jersey , Pennsylvania , Maryland , Delaware , Virginia , West Virginia , Ohio , Kentucky , Tennessee , North Carolina , South Carolina , Georgia and Alabama Range coordinates 40°N 78°W / 40°N 78°W / 40; -78 Orogeny Taconic , Acadian , Alleghanian Age of rock Ordovician –Permian
Appalachian Mountains Peak Mount Mitchell Elevation 6,684 ft (2,037 m) Length 1,500 mi (2,400 km) Countries United States, Canada and France States/Provinces Newfoundland and Labrador , Saint Pierre and Miquelon , Québec , Nova Scotia , New Brunswick , Maine , New Hampshire , Vermont , Massachusetts , Connecticut , New York , New Jersey , Pennsylvania , Maryland , Delaware , Virginia , West Virginia , Ohio , Kentucky , Tennessee , North Carolina , South Carolina , Georgia and Alabama Range coordinates 40°N 78°W / 40°N 78°W / 40; -78 Orogeny Taconic , Acadian , Alleghanian Age of rock Ordovician –Permian