| A | B |
| Great Plains | Located west of Interior Lowlands and eas of the Rocky Mountains |
| Coastal Plain | Along the Atlantic Ocean and Gulf of Mexico |
| Appalachian Highlands | West of Coastal Plain, extending from eastern Canada to western Alambama, includes the Piedmont |
| Canadian Shield | Wrapped around Hudson Bay in a horseshoe shape |
| Interior Lowlands | Located west of the Appalachian Mountains and east of the Great Plains |
| Rocky Mountains | Located west of the Great Plains and east of the Basin and Range |
| Basin and Range | Located west of Rocky Mountains and east of the4 Sierra Nevadas and the Cascades |
| Coastal Range | Rugged mountains along the Pacific Coast that stretch from California to Canada |
| Coastal Range | Contains fertile valleys |
| Basin and Range | Area of varying elevations containing isolated mountain ranges and Death Valley, the lowest point in North America |
| Rocky Mountains | Rugged mountains stretching from Alaska almost to Mexico; hight elevations; contains the Continental Divide which determines the directional flow of rivers |
| Interior Lowlands | Rolling flatlands with many rivers, broad river valleys, and grassy hills |
| Canadian Shield | Hills worn by erosion and hundreds of lakes carved by glaaciiers, holds some of the oldest rock formations in North America |
| Appalachian Highlands | Old, eroded mountains (oldest mountain range in North America) |
| Coastal Plain | Broad lowlands providing many excellent harbors |
| Great Plains | Flat land that gradually increases in elevation westward; grasslands |