1. Earth Treasures
409 1st St, Keystone, SD 57751
Coordinate: 43.89591,-103.41897
Phone: (605) 666-5222
2. Rocks N Things
342 Winter St, Keystone, SD 57751
Coordinate: 43.89066,-103.42686
Phone: (605) 666-4320
3. The Rock Shed
515 1st St, Keystone, SD 57751
Coordinate: 43.89685,-103.41917
Phone: (605) 666-4813