Ponderosa Polar Challenge

A choose-your-distance trail race on short loops at Zion Ponderosa Ranch, from a 5K up to 150 miles, plus 12- and 24-hour challenges. Long-distance races start 7 AM Saturday; the half marathon, 10K and 5K start at 9 AM. Courses close 11 AM Monday. Camping included. Registration closes November 1–5 depending on distance.