Ridley Creek State Park 25k 2026

The Ridley Creek State Park 25K is a fall trail race in Glen Mills, Pennsylvania, run as one clockwise loop through the park. It starts at Pavilion #11, covers 25K, and gives runners five hours to finish. The course is not a gentle path jog: it has about 1,800 feet of climbing, short steep climbs, rocky and root-covered descents, and some smoother singletrack between the rougher parts. The loop passes Hunting Hill Mansion, climbs to the top of Hunting Hill, and comes back along Ridley Creek. Aid stations are located around miles 4, 8, and 12 with water, GU Roctane, soda, and trail snacks. The race rewards the top three men and women with cash and awards, while local sponsors include Bryn Mawr Running Co and Period Architecture Ltd.