Colorado's only true geyser. Secluded within the mountains of the San Juan National Forest, this easy 2.5-mile trail features 500 feet of elevation gain. # Why Go 🌊 Witness 82-degree turquoise water roil and spill. 🚶 Enjoy an easy trail through the woods, experiencing solitude and avoiding crowds of more famous geysers. 👃 Notice the unique sulfur smell from hidden vents along the trail. # Why Avoid ⚠️ Hydrogen sulfide in gurgling water is toxic, do not soak. 💤 Geyser does not shoot high like Old Faithful. # Tips 🅿️ Parking on the right side of NFSR #535, 2.2 miles south of Dunton. 🚗 Gravel road to trailhead accessible by any car when snow has melted. 🗺️ GPS coordinates lead directly to the trailhead.