Zumbro Endurance Run
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About the race
Zumbro Endurance Run is a four-distance trail ultramarathon at the Zumbro Bottoms Management Unit in Minnesota. Distances are 100 miles, 50 miles, 34 miles, and 17 miles, with the event set for April 10–11, 2026. Runners traverse rugged, wooded terrain around Zumbro Bottoms, featuring river crossings and iron bridges as captured in site imagery.
The race relies on a robust volunteer network and generous aid stations, fostering a community and finish-line atmosphere. The official site offers maps and data, results, records, and photos, plus buckle and medal finisher rewards and training resources. Visit the organization's website for the most recent information.