The oldest marathon in Wyoming, run high above the Laramie plains since 1978
Other trail races within 90 miles
Wyoming's oldest continuous marathon, held at the Lincoln Monument Rest Area on Sherman Summit along I-80 east of Laramie since 1978. The out-and-back course traverses Medicine Bow National Forest on predominantly dirt and gravel roads (77% unpaved) at elevations between 8,000 and 8,640 feet, offering challenging terrain and wide Wyoming skies.
Laramie, WY, United StatesMay 24, 2026
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Race day falls on Memorial Day weekend in late May at 8,000–8,700 feet. Temperatures typically range 40–60°F but can swing significantly. Afternoon hail and wind are not unusual at this exposed high-elevation course.
Course runs entirely above 8,000 ft — start and finish at 8,640 ft on Sherman Summit
Conditions can shift from mild to hail and high winds within the race window
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