Great Smoky Mountains National Park provides varied camping options. LeConte Lodge is the only place where you can get a room, however, and you have to hike to the top of a mountain to enjoy the privilege. Gatlinburg has the most sleeping options of any gateway town, though prices are high. Nearby Pigeon Forge, 10 miles north of Sugarlands Visitor Center, and Sevierville, 17 miles north, have cheaper options.
The National Park Service maintains developed campgrounds at nine locations in the park (a 10th remains closed indefinitely). Each campground has restrooms with cold running water and flush toilets, but there are no showers or electrical or water hookups in the park (though some campgrounds do have electricity for emergency situations). Each individual campsite has a fire grate and picnic table. Many sites can be reserved in advance, and several campgrounds (Cataloochee, Abrams Creek, Big Creek and Balsam Mountain) require advance reservations. Reserve through www.recreation.gov.
With nine developed campgrounds offering more than 900 campsites, you'd think finding a place to pitch would be easy. Not so in the busy summer season, so plan ahead. You can make reservations for most sites; others are first-come, first-served. Cades Cove and Smokemont campgrounds are open year-round; others are open March to October.
Backcountry camping is an excellent option, which is only chargeable up to five nights ($4 per night; after that, it's free). A permit is required. You can make reservations online at http://smokiespermits.nps.gov, and get permits at the ranger stations or visitor centers.
Be sure to know the campground regulations.