XTERRA Iron Creek is located 13 miles from Spearfish, SD, nestled in the northern end of the beautiful Black Hills of South Dakota. The course features a 1000m swim, 20k mountain bike course, and a 8k trail run. The swim is a spectator-friendly, two-lap course, with a short exit between laps, in scenic Iron Creek Lake. The bike ride climbs from Iron Creek Lake up to the Old Baldy trail system in the Black Hills National Forest. The ride is entirely within forested areas, so bring your technical skills and expect lots of single-track paths. After descending back to Iron Creek Lake, racers must complete a challenging, two-lap run around the lake, where spectators cheer on the racers as they tackle difficult hill sections on each lap of the run.