National Parks
1. Sequoia & Kings Canyon National Parks (U.S. National Park Service) (nps.gov)
- Sequoia National Park
2. Denali National Park & Preserve (U.S. National Park Service) (nps.gov)
- Denali National Park
3. Mammoth Cave National Park (U.S. National Park Service) (nps.gov)
- Mammoth Cave
4. White Sands National Park (U.S. National Park Service) (nps.gov)
- White Sands
5. Yellowstone National Park (U.S. National Park Service) (nps.gov)
- Yellowstone
- Yellowstone 2
6. Everglades National Park (U.S. National Park Service) (nps.gov)
- Everglades 1
- Everglades 2
- Sequoia National Park
2. Denali National Park & Preserve (U.S. National Park Service) (nps.gov)
- Denali National Park
3. Mammoth Cave National Park (U.S. National Park Service) (nps.gov)
- Mammoth Cave
4. White Sands National Park (U.S. National Park Service) (nps.gov)
- White Sands
5. Yellowstone National Park (U.S. National Park Service) (nps.gov)
- Yellowstone
- Yellowstone 2
6. Everglades National Park (U.S. National Park Service) (nps.gov)
- Everglades 1
- Everglades 2