Alaska · Fairbanks

White Mountain

Founded in 2010 by Fairbanks adventurer Ed Plumb, the White Mountains 100 sends runners, skiers, and fat-bikers on a counterclockwise 100-mile loop through BLM White Mountains National Recreation Area, starting at Wickersham Dome trailhead 38 miles north of Fairbanks. The course covers black-spruce forests, frozen lowlands, and ridgelines with more than 8,000 feet of gain — temperatures can reach -25°F, and the final miles end with the 800-foot Wickersham Wall climb at mile 93. Aid stations roughly every 20 miles offer remote-cabin shelter; the 40-hour cutoff applies to all three disciplines.