Think Big Trail Challenge

OCT
4
2026
Experience the scenic trails and historic ruins of South Williamsport in a 5K or 10K race supporting the Think Big Pediatric Cancer Fund.
10 kilometers 5 kilometers

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Trail Running in South Williamsport

The Think Big Trail Challenge takes place at the Williamsport Water Authority, specifically starting at 1600 Mosquito Valley Rd. This event serves as a benefit for the Think Big Pediatric Cancer Fund. Participants can choose between two distinct off-road distances:

  • 5 km
  • 10 km

The course features a variety of terrains, including gravel roads, smooth singletrack, and more technical sections with rocky terrain and steep climbs. A notable segment is the Bluebird Trail, which follows forest paths past the historic Remington Ruins. The 10 km route includes the Pocowanache Trail, which involves a challenging ascent to a scenic vista before descending back toward the finish.

Both distances share a centralized aid station located at the Green Bridge. The event provides awards for first-place male and female runners in several age categories, ranging from 15 and under to 60 and over. Special commemorative awards and cash prizes are designated for the top female and male finishers aged 15 and under in the 10 km race.

Registration includes race swag for the first 200 participants who sign up. While pre-registration is available online until late September, the organizers also offer registration on the day of the event. Visit the organization's website for the most recent information.

10 km
10k
5 km

Events nearby

Trail races and a family fun run at Camp Susque in Trout Run PA on September 19 2026. Pre-registered runners receive a race shirt and the 5k and 10k use chip timing while proceeds support Camp Susque.
The Mountain Man Ultra is a technical 50K trail race in Waterville featuring 7,500 feet of elevation gain through the rugged terrain of Little Pine State Park.
October trail festival at Little Pine State Park with a demanding 25K of 5,000 plus feet vertical and a 10K of about 1,000 feet on technical trails.
Experience a scenic trail run on the Lakeshore Trail loop at Little Pine State Park with distances for adults and sponsored entries for youth participants.
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