Little Su 50K
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Little Su 50K - Big Lake, Alaska
The Little Su 50K is a winter, human-powered event held in Big Lake, Alaska. The 2026 edition is scheduled for February 15, 2026. Registration opens on November 1, 2025. The published start location is 19391 W Lakes Blvd, Big Lake, AK. The race takes place on marked trails during winter and can present varied cold-weather conditions.
Course and formats
The course is a single 50K loop that travels over frozen rivers, across swamps and along tight, twisty trails through the woods. The route is marked for participants and runs through areas where wildlife and local activity are commonly visible, including moose, fox, dogsled teams and nearby mountains. The event is offered in multiple human-powered formats on the same 50K loop. Visit the organization's website for the most recent information.
- 50K Run
- 50K Bike
- 50K Ski