Dinosaur Valley Endurance Run
Always double-check with the organizer's website! This page may contain affiliate links.
Event Overview
The Dinosaur Valley Endurance Run takes place at Dinosaur Valley State Park in Glen Rose, Texas. The 2026 edition is the tenth year of the event.
Distances and Start Days
The event features multiple distances over two days. Distances include:
- 100 Miler
- 100K
- 50K
- Triassic 25K
- Triassic 5 Mile
- Mesozoic Maniac (a series of three 5-mile races)
- Jurassic 5 Mile
- Cretaceous 25K
- Cretaceous 5 Mile
Course and Terrain
The course features a mix of terrain including soft dirt, rocks, and roots. The route has many gradual up and downhills, with some technical sections and other parts that are more runnable.
Special Categories and Information
The 100K and 100 Miler distances are qualifying races for the Western States Endurance Run. The event is part of the Trail Mix Fund, which can waive registration fees for those who cannot afford it or for members of the BIPOC or LGBTQ+ communities. A 10% discount is available for active military and veterans by requesting a coupon code before registering. Visit the organization's website for the most recent information.
