Muddy Shamrock Trail Races at The Forge

The Muddy Shamrock Trail Races at The Forge take place in Lemont, Illinois, in mid-March. A trail half marathon (13.1 miles) and a trail quarter marathon (6.55 miles) both start at 9:00 a.m., offering an adventurous early-season trail experience.

Runners follow single- and double-track wooded trails with mud, roots and other challenging terrain. The route circles the historic quarries of Lemont, using both mountain bike trails and gravel paths in and around The Forge. The event has recently changed its name, which reflects its growing heritage. Mid-March in northern Illinois often means thawing ground, so expect mud and wet leaves, and choose shoes with deep lugs and socks that handle damp feet.