How big are the Appalachian Mt?
The Appalachian Mountains, often called the Appalachians, are a
system of mountains in eastern North America. The Appalachians
first formed roughly 480 million years ago during the Ordovician
Period. It once reached elevations similar to those of the Alps and
the Rocky Mountains before naturally occurring erosion. The
Appalachian chain is a barrier to east-west travel, as it forms a
series of alternating ridgelines and valleys oriented in opposition
to most roads running east or west. The system is divided into a
series of ranges, with the individual mountains averaging around
3,000 ft (910 m). The highest of the group is Mount Mitchell in
North Carolina at 6,684 feet (2,037 m).