Corps of Discovery Trail Races

The course will cover approximately 13.1 miles and begin from the Lewis & Clark trailhead in the Weldon Spring Conservation Area off Hwy 94. Half marathon participants will first run the 8-mile Lewis trail and then the 5-mile Clark trail. The course will travel counterclockwise 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 option will cover 1 loop of the Clark trail and the 8-mile option will cover 1 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.

Both distances start at 8:00 AM

$75 - Half Marathon ($80 after 7/1/2025)

$65 - 8 mile race ($70 after 7/1/2025)

$55 - 5 mile race ($60 after 7/1/2025)

Sign up before August 15th to guarantee a T-shirt! All runners registered before this date will receive a t-shirt and a finisher's medal.

Become a member of the St. Louis Track Club and get an additional discount on registration. You can join during registration for the race.

Thank you to our sponsor Tailwind Nutrition!

You may also like the following events from St. Louis Track Club:

• This Wednesday, 30th July, 06:00 pm, Summer Pace Series in Clayton
• Next month, 18th August, 06:00 pm, STL Track Club Social Run in St. Louis
• This September, 15th September, 06:00 pm, Third Monday Schlafly Social Run in Richmond Heights

Also check out other Sports events in Defiance, Trips & Adventurous Activities in Defiance.