Get ready for a brand-new running experience coming to Sleepy Hollow in Des Moines in 2026, thanks to Polk County Conservation's parks! The Iowa Trail Run Series delivers excellent value with well-marked courses, race support, basic timing, custom bibs, and rotating race items like BUFFs, socks, hats, mugs, and water bottles—plus a special series gift if you run the whole lineup. Enjoy post-race food to refuel, and customize your registration with a soft tri-blend shirt featuring unique animal icons if you'd like to commemorate your achievement.