- Rafting the Colorado River
- Rainbow Bridge National Monument
- Rainforest Adventure Vacations in Costa Rica
- Redwood National and State Parks
- Rocky Mountains National Park
- Ross Lake National Recreation Area
- Saguaro National Park
- Santa Monica Mountains National Recreation Area
- Scotts Bluff National Monument
- Sequoia/Kings Canyon National Parks
- Sonoran Desert National Monument
- Sunset Crater National Monument
- Theodore Roosevelt National Park
- Timpanogos Cave National Monument
- Tionesta Lake and Dam | Pennsylvania
- Tuzigoot National Monument
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