The closest listing to Wind Cave National Park is Elk Mountain Campground, about 1 mi away. 28 places to camp sit within 50 miles, 39 within 100, and 49 within 150. Every one carries weather, wildfire proximity and a straight link to the official booking site, and the federal ones show live availability.
Federal campgrounds where the app shows how many sites are open tonight.
A lake, river or beach you can get into from camp.
No published nightly fee. Permits and day-use charges can still apply.
The listing says pets are welcome. Leash rules are on each one.
An agency document names accessible sites. The source is on each listing.
Distances are straight-line miles from Wind Cave National Park, not drive times. Mountain roads can double them.