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Boulder Field 100

White Haven, United States • 13 Sep 2025

The Boulder Field 100 is a challenging running event taking place in Hickory Run State Park, Jim Thorpe, PA. Participants can choose from three distances: a 100K ultra run, a 50K ultra run, and an 18-mile run/hike. The course features a rugged terrain with an estimated elevation gain of 4000 feet per 50K loop, including a boulder field crossing and the demanding Shades of Death Trail. The event is designed to be accessible for properly trained runners, with time limits of 16 hours for the 100K and 14 hours for the 50K. Aid stations are provided throughout the course to support participants. Visit the organization's website for the most recent information.

United States Pennsylvania White Haven

Race information

Website Registration
100 km
4000 m+
100 Km Ultra Run
50 km
4000 m+
50k Ultra Run and Mega Hike
18 mi
18m Run/hike
Visit the organization's website for the most recent information.
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