THIS REGION CONTAINS BROAD LOWLANDS EXTENDING TO THE OCEAN WITH MANY EXCELLENT HARBORS AND PORT CITIES
Located west of the Great Plains and east of the Basin and Rage. Rugged mountains stretching from Canada to Mexico; high elevations. Contains the Continental Divide which determines the directions flow of rivers.
Located west of the Interior Lowlands and ewat of the Rocky Mountains. Grasslands that gradually increase in elevation westward; grassland