the eastern because the Rocky Moutains is a very large mountain there
Western North America is more mountainous.
The western side of North America is more mountainous.
EAstern :)
Eastern
western
Western.
Western North America is more mountainous.
Western because the Rocky Mountains
Western North America is more mountainous.
The western part of North America since it is where the Rocky Mountains are.
Although both sides are both mountainous, the western side of the US has a much more mountainous landscape. But it is mostly the Northern Butte side.
The west has more moutains. Check out a map.