Dinosaur Valley Endurance Run

Welcome to the 8th year of our event at the beautiful Dinosaur Valley State Park in Glen Rose, Texas. The Active Joe brought North Texas its first 100 miler, and we continue to grow every year! We offer 5 distances so there's a challenge for every interest level.

Event Details

In all these distances, you’ll be among other amazing athletes challenging themselves. There are lots of gradual up and downhills that add up, and a mix of terrain between soft dirt, rocks, and roots. Some parts are technical while other parts are super runnable. This is a pretty hilly 100 miler by Texas standards, and the terrain can trip you up as you fatigue. Use that first loop through the course to settle into a pace for the race and not go out too fast.

Qualifying Race

Our 100K is a qualifying race for the 2025 Western States Endurance Run race. We focus a lot on inclusion and diversity initiatives, so this will also add more diversity into the lottery and ultimately the start line of the race!

Trail Mix Fund

We are part of the Trail Mix Fund! Do you want to race but can’t afford the entry fee? Are you a part of the BIPOC or LGBTQ+ community? Apply to the Trail Mix Fund to have your registration fee waived. You can learn more on the website: Trail Mix Fund