Boulder Beast

SEP
19
2026
Take on the Boulder Beast in Lock Haven, PA on rugged trails and a legendary boulder field, with 25K and 24/25 mile options. Camp on site, grab free parking, join a Friday night pre race party and celebrate with a post race picnic.
Sat 19 Sep 2026
25 miles 25 kilometers

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Event details

The Boulder Beast takes place in Lock Haven, PA, with the start and finish at the Castanea Township Fire Company picnic grounds. The course includes a notable boulder field and named trails such as Goat Path, Lightning Ridge, Gut Check, Black Diamond, Crossover, Fleming Way, Chestnut Flats and the Gorge Trail. There is camping space and free parking available with no reservations required. A Friday night pre-race party and bag pick-up are held before race day. A post-race picnic with food and beverage follows the event.

Distances offered

  • 25K
  • 24/25 Miler

Registration and cut-off rules

Registration opens December 16, 2025 at 7:00 PM ET via UltraSignup and is limited to the first 600 runners or the September 1 deadline. Entry fees are listed as $80.00 for the 25K and $90.00 for the longer distance. The event policy specifies no refunds, no bib transfers, no deferments, and no unauthorized entries.

There are strict aid station cut-off times at specific miles to ensure runners finish in daylight. Key cut-offs include Bottom of Boulder Field Mile 6.5 (10:30am), Boy Scout AS Mile 8 (11:00am for the longer distance; 1:00pm for 25K), Zindel Park AS Mile 11 (12:30pm), Vets+ AS Mile 16 (3:00pm) and Leadership CC AS Mile 21 (5:00pm). If a longer-distance runner reaches the Boy Scout aid station after its cut-off, they will be directed onto the 25K course. The 25K course requires reaching the bottom of the boulder field by 10:30am. Visit the organization's website for the most recent information.

25 mi
25 Miler
25 km
25k

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