Across
- 5. largest canyon in the world
- 6. deepest canyon in US
- 8. Most widespread cactus
- 9. fat little farmer
- 11. contains Death Valley
- 13. Hottest & driest in NA
- 15. largest river flowing to Pacific
- 17. Highest in NA
- 19. known for huge white dunes
- 20. Highest peak of Cascades
- 21. Mtn in Hawaii
Down
- 1. Highest point in US outside Alaska
- 2. NA highest waterfalls
- 3. Largest desert in US
- 4. most famous geyser
- 7. longest living tree
- 10. largest high altitude lake
- 12. Highest in Rockies
- 14. Canada's Highest Peak
- 16. Peak in Andes
- 18. deepest lake in US