Across
- 5. Hottest, driest and lowest national park
- 7. Also a UNESCO World Heritage site
- 8. Home to Haleakala or "House of the Sun", one of the world's largest volcanic craters
- 9. This geyser in Yellowstone erupts every 90 minutes
- 10. The first national park
Down
- 1. Deepest lake in the US
- 2. Home to the highest peak in North America
- 3. Home to the world's tallest tree
- 4. Home to 7 of the 10 largest national parks
- 6. Tall slender rock spires found in western parks