24125 Hwy 16A PO Box 714Keystone, SD 57751 Phone: +1 605-666-4646Toll Free: +800-321-0692 Hotel E-mailHotel Website Commission Rooms Rates - 38 $149-$149 (USD) Hoteliers! Is your information accurate? Update Here Powder House Lodge Location & Neighborhood 30 min from Rapid City Regl airport.