The Andes and Himalayas are actively growing mountain
belts located near convergent plate boundaries. The
Appalachian Mountains of North America, the Atlas Mountains
of northwestern Africa, and the Scottish Highlands of
Europe are not actively growing. However, all three
of these areas have geologic structures that show they
were exposed to mountain-building processes at about
the same time. No convergent plate boundary exists near
these widely separated mountains.
! Examine the location of the three inactive mountain
belts. Consider the current plate tectonic setting of
the Atlantic Ocean.