Land formation [chart].
1. Volcano
2. Mountain
3. Crater
4. Hill
5. Plateau
6. Cliff
7. Valley
8. Island
9. Plain
551.4 L2291
1. Volcano
2. Mountain
3. Crater
4. Hill
5. Plateau
6. Cliff
7. Valley
8. Island
9. Plain
551.4 L2291