1. Yankton Metals Inc Po Box 735, Yankton, SD 57078 Coordinate: 42.882088,-97.39862 Phone: (605) 665-3535
2. Yankton Metals Steel & Pipe 1405 Bill Baggs Rd, Yankton, SD 57078 Coordinate: 42.882088,-97.39862 Phone: (605) 665-2473