Corps of Discovery Trail Races
Defiance, MO
- Half Marathon, 8 Miler, 5 Miler
- Trail (Unpaved)
- Official race website
The Corps of Discovery Trail Races will be held on the Lewis and Clark Trails. Entry is limited to the first 200 registrants. Event proceeds will be donated to the Weldon Spring Conservation Area. As such, no refunds or bib transfers will be permitted. The Corps of Discovery course will … MORE
Local Historical Weather (Aug 29):
| 2025 | 2024 | 2023 | 2022 | 2021 | |
| H (°F) | 85 | 94 | 85 | 93 | 90 |
| L (°F) | 56 | 70 | 58 | 72 | 72 |
Find Nearby Lodging (hotel, rental, etc.):
Challenging course
This course runs counter clockwise of the actual trail whoch makes it more challenging. Many spors are one lane areas with no passing. Inclines are rocky & tree logged. While … MORE
This course runs counter clockwise of the actual trail whoch makes it more challenging. Many spors are one lane areas with no passing. Inclines are rocky & tree logged. While its a challenging course it was great scenery & very put together. Volunteers were amazing help!