trailUltraultra
O'Brien Trail Races
Saturday, 26 September 2026 · Marine on St Croix, MN, United States
- Date
- Saturday, 26 September 2026
- Location
- Marine on St Croix, MN, United States
- Distance
- 50 km (Ultra)
About This Race
O'Brien Trail Races is a 50 km ultra trail race held in Marine on St Croix, MN. The event takes place in September 2026.
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