Cliff Runner 10K

Prepare for an exhilarating challenge at the Cliff Runner 10K on July 19, 2026, held within the stunning High Cliff State Park in Sherwood, WI. This 10K is renowned as an extreme trail run, meticulously designed to guide participants through the most demanding sections of the park. Runners will navigate mostly single-track trails, encountering a rugged landscape filled with rocks, roots, boulders, and significant hills, culminating in a total elevation gain of nearly 500 feet. The course promises a true trail running experience, including iconic features like the "stairway to heaven" (a railroad stairway) which runners will ascend twice.

The Cliff Runner 10K offers more than just a race; it's a test of grit and a celebration of the unique natural beauty of High Cliff State Park, situated on the impressive Niagara Escarpment. While detailed aid station specifics are limited, expect at least one well-placed water station along the challenging route, with one noted near a waterfall section. Typical race day conditions in mid-July include highs around 83F and lows around 60F, with a 15% chance of precipitation, making for a potentially warm but usually dry race environment.

Whether you're looking to push your limits or enjoy a challenging power hike, the Cliff Runner 10K welcomes all, boasting no cut-off time. The race kicks off at 10:00 AM from the Lime Kiln Trail parking lot, with finishers receiving a commemorative Cliff Runner T-shirt and medal. The post-race atmosphere is vibrant, featuring refreshing root beer and beer for participants, accompanied by music from A-Town Unplugged. A portion of the race proceeds also supports the Purdy Nature Preserve at the Apple Creek YMCA, adding a charitable component to this unforgettable trail adventure.