Cap Sauers Trail Marathon & 10 Miler Palos Hills, IL   May 10, 2025

Explore the Cap Sauers Holding Nature Preserve – the largest tract of undeveloped land in Cook County, IL. This race will cover every inch of maintained trail within the Nature Preserve. With over 1000 ft of elevation, this marathon is mountainous by Chicago standards!

The Cap Sauers Trail Marathon course will be run on the Sag Valley Trail. The entire course is wide horsetrail, with little to no technical trail running required. There will often be 2-way traffic, so you should always feel the encouragement of your fellow runners.

The Marathon course is three parts: 2 circuits of the 10 mile course, and a final 10k out-and-back to the WEST aid station & back.

There are several turnaround points, with each one offering the opportunity for aid. Each turnaround point features an aid station, at these approximate mile marks: 3, 5, 8, 10, 13, 15, 18, 20, 23.