Across
- 2. hills worn by erosion and hundreds of lakes carved by glaciers
- 4. broad lowland providing many excellent harbors
- 6. contains the Continental Divide, which determines the directional flow of rivers
- 7. flat land that gradually increases in elevation westward; grasslands
- 8. varying elevations containing isolated mountain ranges and Death Valley, the lowest point in North America
Down
- 1. rolling flatlands with many rivers, broad river valleys, and grassy hills
- 3. old, eroded mountains (oldest in North America)
- 5. rugged mountains and fertile valleys; includes the Sierra Nevadas and the Cascades