We stayed at the Elk Mountain Campground in Wind Cave National Park in January 2016. It was definitely the LOW season, as roads were a bit icy and we were the only campers all weekend. During the off-season, part of this campground is closed off, but there still remains an ample amount of campsites available, including pull-throughs. There is a pit toilet building in the center of the campground. Flush toilets and water are available during the busy season. The campsites are situated in a small valley, placing it away from noise and traffic, aside from bison and other animals that might wander through. Each site has a picnic table and fire ring, and firewood is available for purchase at the campground entrance. Best of all, this campground is located very close to the Visitor Center, even up for a hike on a nice day (not in January!). Speaking of hiking, one of Wind Cave's Nature Trails is located off the back loop here, the Elk Mountain Nature Trail. There is also a small, semi-dry creek that wanders along the northern edge of the campground. Please note via NPS.gov: the Elk Mountain Campground will be closed from noon, August 5, 2016 until the morning of August 7, 2016.