| THE EAST | Acadia Shenandoah Great Smoky Mountains Biscayne Everglades |
| THE MIDWEST | Mammoth Cave Hot Springs Voyageurs Isle Royale Theodore Roosevelt Badlands Wind Cave |
| THE SOUTHWEST | Big Bend Guadalupe Mountains Carlsbad Caverns Petrified Forest Saguaro Grand Canyon Zion Bryce Canyon Canyonlands Capitol Reef Arches Mesa Verde |
| THE ROCKIES |
Great Basin Rocky Mountain Grand Teton Yellowstone Waterton / Glacier North Cascades |
| ALASKA | Wrangell-St. Elias Glacier Bay Denali Kenai Fjords Lake Clark Gates of the Arctic Katmai Kobuk Valley |
| THE WEST |
Channel Islands Death Valley Yosemite Joshua Tree Sequoia / Kings Canyon Lassen Volcanic Redwoods Crater Lake Olympic Mount Rainier Haleakala Hawaii Volcanoes |