Susitna 100
Big Lake, United States • 13-15 Feb 2027
Susitna 100 and Little Su 50K
Alaska Winter Wilderness Races organizes the Susitna 100 and the Little Su 50K, human-powered winter trail races held in February on marked trails near Big Lake, Alaska. The events take place on trails with varied winter conditions and visible landscape views.
Distances include:
- 100 miles Susitna 100 human-powered race
- 50 kilometers Little Su 50K human-powered race
The Susitna 100 is scheduled for February 13 to 15 and the Little Su 50K for February 14. The event materials include race rules, course descriptions, maps, gear information, a gear check and meeting, race results, and a photo gallery. Additional resources cover what to expect on the trail, travel and merchant information, a post race party, and frequently asked questions.
Portions of the land used for the races are owned by the Mental Health Trust Authority and are used under permit. Permit revenue supports the Alaska Mental Health Trust Authority and its work for trust beneficiaries in Alaska. The races acknowledge that they take place on the traditional lands of the Dena’ina and Ahtna Dene people. Visit the organization's website for the most recent information.