Answer:
The mountain range that stretches from Alabama to Canada is the Appalachian Mountains.
Step-by-step explanation:
The Appalachians are located mainly in the United States from the center of Alabama but extend to Newfoundland, Canada and consist of a number of parallel chains with different names. The mountain ranges mainly run along two parallel lines that enclose a wide length valley, the Great Appalachian Valley.
The Appalachians have for some time acted as a kind of barrier between the first settlers in the east and their hinterland. The connections in particular have caused some problems because the chains rise immediately behind the four port cities - although not so high, but nevertheless a difficult obstacle at the time.