Across
- 3. Himalayas, Tatras or Alps
- 5. a large hole, usually underground or on the side of a cliff, mountain, etc.
- 6. a naturally raised area of land, not as high or rough as a mountain.
- 8. Pacific, Atlantic or Indian.
- 9. a large area covered with trees, shrubs and plants.
Down
- 1. a mountain from which lava sometimes bursts.
- 2. a low area of land between hills or mountains.
- 4. Sahara, Gobi or Kalahari.
- 7. steep rock, usually at the edge of the sea.
- 10. The Nile, Amazon or Thames.