Map: Great Appalachian Valley
Greatvalley-map.jpg: Pflyderivative work: Perhelion [CC BY-SA 2.5 (https://creativecommons.org/licenses/by-sa/2.5)], via Wikimedia Commons
Digital Alabama (https://digitalalabama.com/alabama-maps/map-great-appalachian-valley/21544)
Greatvalley-map.jpg: Pflyderivative work: Perhelion [CC BY-SA 2.5 (https://creativecommons.org/licenses/by-sa/2.5)], via Wikimedia Commons