Four sites require special controlled access permits, including two back-country sites which are for tent camping only. Securing a camp site early in the day is essential during the June-July high season. Wilderness hiking and wildlife tours on 5.6 million acres, including the highest North American peak, Mt. McKinley at 20,320 feet. Cyclists cut through rock formations on the road in Zion National Park, Utah. Some campgrounds open in April, and most close by late September.
Some winter camping is available.
Back-country camping permits are required for 70 wilderness camps. They're free, but must be picked up 24 hours in advance at the park. Two campgrounds, Bright Angel, and Cottonwood, are for backpackers only, with a two-day limit. All back-country camping requires a fee. 107 Park Headquarters Rd., Gatlinburg, Tennessee 37738.