- Rainforest Adventure Vacations in Costa Rica
- Rhode Island, Blackstone River Gorge Trail
- RI, Conn.,Mass., Buck Hill Trail
- Sequoia/Kings Canyon National Parks
- South Carolina, Raven Cliff Falls Trail
- South Dakota, Castle Trail
- South Dakota, Cliff Shelf Nature Trail
- South Dakota, Door Trail
- South Dakota, Medicine Root Trail
- South Dakota, Notch Trail
- South Dakota, Saddle Pass Trail
- South Dakota, Window Trail
- Tennessee, Clingmans Dome Loop Trail
- Texas, Lost Mine Trail
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