Rattlesnake Gulch is a short but steep lollipop located in Eldorado Canyon State Park. It is the only trail within the park open to mountain bikes. Because the connecting Fowler Trail from the Doudy Draw
system is not open to bikes, riders must enter through the park gates and pay the $3/day park pass for riding in, or the $8 vehicle pass.
Note that parking fills up rapidly on the weekends.
The trail itself is heavily hiked on the weekends. With an average grade of 10% over loose soil, it's a lung busting climb. The trail climbs more gradually in the counter-clockwise direction. While the trail doesn't offer the most exciting trail features, it does offer some great views of Eldorado Canyon and the Continental Divide.