Zoning
Hill City — the central Black Hills hub between Mount Rushmore, Crazy Horse Memorial, Custer State Park, Sylvan Lake, and the 1880 Train heritage-railroad terminus — permits STRs broadly across residential and commercial zones with business license + lodging tax registration + life-safety standards. No primary-residence requirement, no nights cap, no zoning-class ban. The town's economy is essentially 100% tourism + heritage-railroad-driven. Peak season May-September with the same Sturgis Rally + Mount Rushmore-corridor demand pattern as the rest of the Black Hills cluster.
Zoning: STRs permitted in all residential and commercial zones with registration. The downtown Main Street historic blocks have design-review considerations for exterior modifications. Properties on / near the 1880 Train corridor may have separate easement / right-of-way considerations but STR use itself is unrestricted. Sylvan Lake-adjacent + Black Elk Wilderness-adjacent properties fall under SD GFP / USFS coordination for shoreline + boundary modifications but not STR use directly.