Parks.

National Parks of the United States of America. (25/62)

25. Arches National Park, Utah.
24. Black Canyon of the Gunnison National Park, Colorado.
23. Mesa Verde National Park, Colorado.
22. Great Sand Dunes National Park & Preserve, Colorado.
21. Rocky Mountain National Park, Colorado.
20. Saguaro National Park, Arizona.
18. Yellowstone National Park, Wyoming.
17. Grand Teton National Park, Wyoming.
16. Congaree National Park, South Carolina.
15. Biscayne National Park, Florida.
14. Dry Tortugas National Park, Florida.
13. Everglades National Park, Florida.
12. Pinnacles National Park, California.
11. Great Smoky Mountains National Park, Tennessee.
10. Carlsbad Caverns National Park, New Mexico.
9. Guadelupe Mountains National Park, Texas.

8. White Sands National Park, New Mexico.
(formerly White Sands National Monument)
7. Shenandoah National Park, Virginia.
6. Olympic National Park, Oregon.
5. Death Valley National Park, California.
4. Yosemite National Park, California.
3. Grand Canyon National Park, Arizona.
2. Mammoth Cave National Park, Kentucky.
1. Gateway Arch National Park, Missouri.
(Formally Jefferson National Expansion Memorial)