On The Rocks Trail Runs

On The Rocks Trail Runs returns to Rocky Ridge County Park in York, Pennsylvania on June 27th, 2026, offering runners a challenging yet rewarding experience through the rolling hills of the park. This event is more than just a race; it’s an immersion into the natural beauty and rugged terrain that define this part of central Pennsylvania. As dawn breaks over Rocky Ridge County Park, the early morning light casts long shadows across the winding trails, setting the stage for what promises to be a day filled with both physical challenge and scenic splendor.
The course itself is a testament to the park’s diverse landscape, featuring rolling hills dotted with rocks that make each step count. The 10K route offers an introductory taste of the terrain, while those who dare can tackle the full marathon distance or even push on for two more loops in pursuit of the ultra distances. Each loop presents its own set of challenges: steep climbs averaging around 250 vertical feet and winding paths that weave through thickets of trees and rocky outcrops. The trails are hard yet dry, providing a firm footing despite their rugged appearance.
Over the years, On The Rocks Trail Runs has become an integral part of York’s running community calendar, drawing participants from across Pennsylvania and beyond who come to test themselves against this unique landscape. Since its inception, the race has raised substantial funds for local charities through entry fees that are non-refundable due to their direct donation to a worthy cause. This tradition not only challenges runners physically but also connects them with an important community effort.

The logistics of participating in On The Rocks Trail Runs are straightforward yet essential to navigate. Registration is available at https://ultrasignup.com/register.aspx?did=138851, where fees range from $35 for the 10K up to $50 for the grueling 50K distance. To ensure you receive your wicking t-shirt, all entries must be completed by June 12th. Packet pickup begins early on race morning, with designated times based on each distance: 6:15-6:50am for the 50K runners and progressively later through to 8:30am for those running shorter distances.
The start line is located at Rocky Ridge County Park, situated along Deininger Road in York. Participants should arrive well before their bib pickup times as there are strict cutoffs—specifically, participants must begin their last loop by no later than 12:20pm to complete the race on time. All runners must be prepared for a day of rugged trail running that requires not only endurance but also agility and determination.
As June temperatures hover around an average of 22.5 degrees Celsius with variable humidity levels, participants can expect conditions ranging from pleasantly mild mornings to warmer afternoons. The dry trails will provide firm footing underfoot, though runners should be prepared for the possibility of scattered showers given historical rainfall patterns in this region during early summer months.
On The Rocks Trail Runs at Rocky Ridge County Park on June 27th invites all who are ready to push their limits and embrace the challenge that lies within these hilly trails. Whether you’re a seasoned ultramarathoner or simply looking for your first taste of trail running, there’s no denying the allure of conquering this unique landscape in York, Pennsylvania.