2 events in Lemont, Illinois

From big races to Saturday morning group runs—find trail running events and connect with the local endurance sports community.

• The Forge Trail Run Festival [runsignup.com] [Register at runsignup.com]
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  Sat, Nov 14, 2026 at 7:15 AM

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  Race and Course Information

  The Forge Trail Run Festival will embrace the adventure and challenge of late-fall, mid-west trail running with 10K, 20K, 30K, and 60K events. The races will be run on...

  Race and Course Information

  The Forge Trail Run Festival will embrace the adventure and challenge of late-fall, mid-west trail running with 10K, 20K, 30K, and 60K events. The races will be run on single/double-track trails in The Forge and adjoining trails, within the woods and on some gravel around the historic Lemont Quarries and I&M Canal.

  The courses will start and finish within the Forge. The courses wind through the single and double track trails within the woods and some gravel trails around the historic Lemont Quarries and I&M Canal throughout the Forge and adjoining trails.

  The 10K will be one lap, the 20K (Half Marathon) will be two laps and the 30K will be a three lap course. Our newest offering - the 60K - will be six laps. Total mileage may not be precise, but will be close to the promoted distances. This is a trail race and we want the natural terrain and flow to guide the course and distance.

  The gravel trails are flat. The single-track sections have variable terrain and surfaces ranging from dirt, grass, rocks, mud, more rocks, roots, mulch, stumps, critters, etc. A few sections are technical with several short but steep inclines and downhills. The defining character and primary challenge of the course is the variable surface. There are not any significant elevation changes. We would rate this course as moderately challenging for experienced trail runners and more difficult for runners with less experience on trail.

  6.2 Miles 13.1 Miles 18.6 Miles 37.2 Miles Gravel Run Trail

  227 Heritage Quarries Dr., Lemont, Illinois, 60439, United States
  OpenStreetMap Google Maps
• Muddy Shamrock @ The Forge [runsignup.com] [Register at runsignup.com]
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  Sat, Mar 13, 2027 at 9:00 AM

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  2025 Muddy Shamrock Results

  Woods, dirt, mud, roots, and maybe some other adventurous trail stuff will be experienced at the 5th annual Muddy Shamrock Trail Races @ The Forge. And now that we've...

  2025 Muddy Shamrock Results

  Woods, dirt, mud, roots, and maybe some other adventurous trail stuff will be experienced at the 5th annual Muddy Shamrock Trail Races @ The Forge. And now that we've earned the 4th leaf in our clover, the race is now named the MUDDY SHAMROCK!

  This early-season trail race will be run on wooded single & double-track trails with awesome scenery around the historic Lemont Quarries. Both races will traverse the single-track MTB trails within the woods and some gravel trails throughout the Forge and adjoining trail systems.

  6.5 Miles 13.1 Miles Gravel Mountain Biking Run Trail

  227 Heritage Quarries Dr., Lemont, Illinois, 60439, United States
  OpenStreetMap Google Maps

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