National Parks

4. this park is home to the largest known cluster of late Eocene and Oligocene mammal fossils
7. six shipwrecks over nearly a century have been mapped here
9. rainstorms are rare in the hot and dry landscape of this national park
13. this park is home to thermal waters that naturally heat to 143ºF
15. there are two active volcanoes within the bounds of this national park
17. this park is the only National Park Service site south of the Equator

1. the South Rim that overlooks this beautiful park is open 24 hours a day, 365 days a year
2. in this park if you want to go beyond mile 15, vistors need to explore the park by bus, bicycle, or on foot, as private vehicles are not allowed
3. this park is comprised of the world's longest known cave system
5. this park is home to El Capitan, the largest exposed granite monolith in the world
6. this park is known for its abundance of sea turtles, including loggerheads, leatherbacks, and hawksbill turtles that annually nest in the area
8. this park is home to more than 119 caves that are hidden beneath the surface of the Chihuahuan Desert
10. the beautiful landscape of this park inspired sisters Esther and Elizabeth Burnell to become the first female naturalists certified by the National Park Service
11. this park sits atop the largest supervolcano in North America
12. this park protects trees that may have the thickest bark of any tree on Earth
14. together with Waterton Lakes National Park in Canada, this park makes up the world's first international peace park
16. this park has three distinct ecosystems—glaciated mountains, rugged Pacific coastline, and lush temperate forests