Corps of Discovery Half Marathon, 8 Mile & 5 Mile

Saint Charles, Missouri, United States

Aug 29, 2026 - Saturday

8mi, 8k/5mi, Half-marathon

Race Information

The half-marathon course covers approximately 13.1 miles and begin from the Lewis & Clark trailhead in the Weldon Spring Conservation Area off Hwy 94 in Defiance, MO. Half marathon participants will first run the 8-mile Lewis Trail and then the 5-mile Clark Trail. The course will travel counter-clockwise and will not be closed to outside use. There will be markings along the course and a volunteer where the trails split. The 5-mile distance will cover one loop of the Clark trail and the 8-mile option will cover one loop of the Lewis trail. The trail winds itself along the bluffs of the Missouri River down the hardwood-lined ridges and into the hollows so all participants will have something to enjoy.

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Race Facts

Race Size: 100 - 500

Elevation: Lots of Hills

Course Type: Trail

Boston Qualifier: No

Kids Run: No

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