September 14, 2025 

Join us for a great day of running through the spectacular fall colors in the heart of the Elk Mountain Range. Run, walk, or hike the 25k loop around Lead King Basin. Zip past the famous Crystal Mill and the Town of Crystal. After the event enjoy a delicious homemade boxed lunch including Slow Groovin' BBQ and a cold beer- included with entry. All participants receive breathtaking scenery, a custom event shirt, awesome food, and a custom finisher medal.

 

The Lead King Loop is a proud member of the Colorado Mountain Half Marathon+ Series.

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The Lead King Loop is 100% volunteer staffed and all proceeds benefit the Marble Charter School.  Please consider donating if you choose not to participate this year, the kids need your support!