Across
- 4. Island nation in Indian Ocean
- 6. Active Sicilian volcano
- 8. Related to deltas
- 9. Island in Mediterranean
- 10. Mountains in Central Asia
- 12. Eastern US mountain range
- 16. Australian island
- 17. Mountains between Spain, France
- 18. Tropical grassland
- 20. Western North American range
- 23. Land weathering process
- 25. Southeast European region
- 27. Island south of India
- 28. World's second-highest peak
- 30. Mountains dividing Europe, Asia
Down
- 1. Islands of unique wildlife
- 2. Tallest US mountain
- 3. Mountain range in Europe
- 5. Spanish word for mountains
- 7. Cold treeless biome
- 11. Iconic Japanese volcano
- 13. Mountains in North Africa
- 14. Greek mythology mountain
- 15. Mountain in Washington
- 19. Volcano in Italy
- 21. Hawaii's massive volcano
- 22. Glacier-deposited debris
- 24. South African mountain range
- 26. Highest South American peak
- 29. Small Mediterranean island