Weres the apllaction mountain

The Appalachian Mountains are a vast system of North American mountain ranges. They lie partly in Canada, but mostly in the United States, forming a zone, from 150-500 kilometers (approx. 90 to 300 miles) wide, running 2,400 km (1,500 miles) south and westward from Newfoundland and Labrador in Canada to central Alabama in the United States, with foothills in northeastern Mississippi.