Public toilets and restrooms in Keystone, SD

Keystone has 4 public restrooms on the map. 1 is confirmed free.

Highest-rated first. Updated November 5, 2026. All of South Dakota

Public restrooms

• Holy Smoke Resort

  Park restroom · No ratings yet

  24105 Highway 16A, Keystone, SD 57751

• Horse Thief Lake Campground

  Park restroom · No ratings yet

  Keystone, SD

  Fee

• Public restroom

  Public toilet · No ratings yet

  Keystone, SD

  Open to the public · Free

• Watson City Park restroom

  Park restroom · No ratings yet

  Keystone, SD

  Open to the public

Nearby cities

Custer County (37) Custer (3) Pennington County (24) Rapid City (30) Piedmont (3) Lawrence County (14) Jackson County (10) Harding County (3)