On the Rocks Trail Run York, PA   Jun 27, 2026

The course is rolling hills with rocks, rocks with dirt, dirt with rocks, and some tree roots. The course is challenging with 4 1/2 climbs that average approx. 250 vertical ft. each which make each loop about 1,350 feet.  The 10K is a partial loop (800 feet).
The 16.7K is one awesome loop of trails and hills. If you running the 33.3K run you get to do all again (2 loops) and if you are running the 50K you get to do the loop one more time (3 loops). There is a cutoff for the race, must start your last loop before 12:20pm.

No refunds are given because all the money goes to a local charity.