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Big A 50K Trail Race

York, United States • 2 May 2026

Course and Distances

The event offers a 50K (31 mile) trail race. The course consists of three 10.35-mile loops. The route starts at the summit of Mount Agamenticus, climbs back up this peak, goes over Second Hill and Third Hill, and returns to the Big A summit. Participants can choose to finish at approximately 10 miles or 13 miles, or complete any multiple of these distances up to the full 50K.

Terrain and Logistics

The terrain is mostly single-track trail with some sections on dirt roads and ATV-type trails. The footing is described as technical, with many rocks, roots, and elevation changes. The full 50K distance has approximately 5,787 feet of elevation gain. Trail running shoes are recommended.

The event takes place in York, Maine, at Mount Agamenticus. The event registration has no official fee but is operated with a donation model. A minimum donation of $20 is recommended to benefit the Mount A Conservation Region. Visit the organization's website for the most recent information.

United States Maine York

Race information

Website Registration
50 km
Big a 50k Trail Race
Visit the organization's website for the most recent information.
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