Think Big Trail Challenge

South Williamsport, United States • 5 Oct 2025

Think Big Trail Challenge takes place in Williamsport, Pennsylvania, on the Williamsport Municipal Water Authority trails around Mosquito Valley Road. The event offers distances, 5K and 10K, routed through a mix of singletrack, forest paths, rolling climbs, and fast descents. The Bluebird Trail finishes through serene, historic scenery, while the Pocowanache Trail adds steeper climbs and a vista reward.

An aid station is located at the Green Bridge for both routes. Proceeds benefit the Think Big Pediatric Cancer Fund, supporting families affected by pediatric cancer. Emphasizing community and resilience, the event notes limited parking and encourages carpooling to aid logistics. Visit the organization's website for the most recent information.

Race information

10 km
10k
5 km
Visit the organization's website for the most recent information.
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