Boulder Beast

Lock Haven, United States • 19 Sep 2026

Event

Boulder Beast is a trail running event near Lock Haven, PA, based at the Castanea Township Fire Company picnic grounds. The event includes a prominent boulder field and several named trails, including Goat Path, Lightning Ridge, Gut Check, Black Diamond, Crossover, Fleming Way, Chestnut Flats and the Gorge Trail. There is free camping space and free parking on site.

Distances

  • 25K
  • A longer trail distance (long course) offered

Course details and cut-offs

The 25K course has the first 3.5 miles on road and the next three miles on trail; runners must reach the bottom of the boulder field by 10:30am or be removed. Cut-off points for the longer course include Boy Scout AS (mile 8), Zindel Park AS (mile 11), Vets+ AS (mile 16) and Leadership CC AS (mile 21) with specific cut-off times at each aid station. If a 25-miler entrant reaches Boy Scout AS after its cut-off, they will be directed onto the shorter course.

Registration and race logistics

Registration opens December 16 and is limited to the first 600 entrants or the September 1 registration deadline. Entry fees listed are $80 for the 25K and $90 for the longer distance. The event has a pre-race party and bag pick-up on the day before the race, and a post-race picnic with food and beverage. There are no refunds, bib transfers, deferments, or unofficial entrants allowed. Visit the organization's website for the most recent information.

Race information

24 mi
24 Miler
25 km
25k
Visit the organization's website for the most recent information.
Trail runs nearby

Brave the Frozen Snot in McElhattan, PA on Feb 7, 2026, a technical winter mountain trail race with steep climbs, boulder fields and rope assisted descents. Multiple distances up to a rugged 25K; not for beginners.

Enjoy a crisp winter 4 mile trail run through woodland at RB Winter State Park near Mifflinburg, PA, followed by a cozy post race gathering with hot soup and food. Finishers receive a bottle of wine or grape juice.

Fire on the Rocks 10K is an intermediate trail run at Zindel Park featuring about 6.5 to 6.6 miles and 1,400 feet of climbing across rugged singletrack and ridgelines. Enjoy sweeping views and sticky buns at the finish.

The Rider Rattler will take place in Montoursville on Saturday 28 March 2026. You can run between 4 and 8 miles.