Roadside camping is permitted at 21 campsites in Great Sand Dunes National Preserve beginning 5.2 miles from where the road begins near Piñon Flats Campground. These designated sites are free of charge and first-come, first-served. All 21 sites fill on summer weekends. Passable only in the warmer months and only with high-clearance 4-wheel drive vehicles. This road crosses areas of deep sand, traverses Medano Creek nine times, and passes through excellent habitat for bighorn sheep.