Rattlesnake Gulch Trail – Eldorado Canyon Sp

Distance: 3.7 miles Elevation Gain: 800 ft Difficulty: Strenuous Type: Out-and-Back Surface: dirt Activity: Hiking Best Season: year-round Typical Time: 2-4 hours Fee: $10/vehicle Dogs: True Permit: False

Rattlesnake Gulch Trail is the premier hiking route in Eldorado Canyon State Park, ascending 800 feet through a dramatic canyon corridor renowned worldwide as one of America's finest rock climbing destinations. Along the way, hikers pass beneath sheer sandstone walls where climbers can often be spotted high above on technical routes graded among the most challenging in Colorado. The canyon's towering walls, polished by millennia of South Boulder Creek, create an atmosphere of vertical drama rarely found on a family-accessible trail.

Near the turnaround point stand the evocative ruins of the Crags Hotel and the Richthofen Castle, early-twentieth-century resort structures that once catered to Denver's elite seeking mountain escape. These stone remnants, perched above the canyon, add a layer of human history to the geological spectacle. The trail is open to leashed dogs, making it popular with pet owners. Eldorado Canyon draws both serious climbers and casual day hikers, so arrive early on weekends to secure parking. The $10 per vehicle fee supports park operations and trail maintenance throughout the year.