The Appalachian Mountain Range is over 1 billion years old. That's roughly one quarter of the earth's entire life span. In the time of the super-continent, Pangea, the Appalachian Mountains and the Scottish Highlands were once connected as part of the same mountain range, known as the Central Pangean Mountains. Remnants of this massive mountain range include the Appalachian Mountains of North America, the Scottish Highlands, Ireland, The Scandinavian Mountains, parts of Greenland, and the Little Atlas Mountains of Morocco. At it's peak, this mountain range was as tall as Mt. Everest. (Pictured are the Appalachian Mountains and Scottish Highlands.)🤍💫