* Acadia National Park (Maine)
* Cape Cod National Seashore (Massachusetts)
* Gettysburg National Military Park (Pennsylvania)
* Great Smoky Mountains National Park (North Carolina and Tennessee)
* Mammoth Cave National Park (Kentucky)
* Shenandoah National Park (Virginia)
Midwest:
* Arches National Park (Utah)
* Badlands National Park (South Dakota)
* Black Hills National Forest (South Dakota)
* Canyonlands National Park (Utah)
* Crater Lake National Park (Oregon)
* Glacier National Park (Montana)
* Grand Teton National Park (Wyoming)
* Rocky Mountain National Park (Colorado)
* Sequoia National Park (California)
* Yosemite National Park (California)
South:
* Biscayne National Park (Florida)
* Carlsbad Caverns National Park (New Mexico)
* Everglades National Park (Florida)
* Grand Canyon National Park (Arizona)
* Guadalupe Mountains National Park (Texas)
* Hot Springs National Park (Arkansas)
* Mammoth Cave National Park (Kentucky)
* Rocky Mountain National Park (Colorado)
* Saguaro National Park (Arizona)
* Zion National Park (Utah)
Alaska:
* Denali National Park and Preserve
* Gates of the Arctic National Park and Preserve
* Glacier Bay National Park and Preserve
* Katmai National Park and Preserve
* Kenai Fjords National Park
* Kobuk Valley National Park
* Lake Clark National Park and Preserve
* Wrangell-St. Elias National Park and Preserve
Hawaii:
* Haleakala National Park
* Hawaii Volcanoes National Park