Trail Running calendar near Custer 2026-2027
We have found 5 Trailruns within 80 miles of Custer. See below where and when you can find the races.
We have found 5 Trailruns within 80 miles of Custer. See below where and when you can find the races.
Backyard ultra at Big Hill near Spearfish SD with 4.167 mile loops and about 375 ft elevation change per loop. New lap starts each hour and the last runner to outpace all others wins.