Arch Canyon has 6 rappels of progressively increasing length. The anchor systems are 1/2 inch X 6 inch glue in bolts, or 1/2 inch x 3/34 inch Rawls or equivalent, with chains. Anchors in the canyon are new and placed in winter of 2010/11 Arch Canyon is a major drainage for the west side of Highway 18 from the Ledges golf course south to the Gold Diamond ranches. The area is a maze of brief slot canyons, eroded monoliths, isolated basalt flows and innumerable small cliffs descending into Johnson Canyon in Snow Canyon State Park. The canyon system itself is comprised of several pour offs into pool areas interrupted by basalt boulders and open sand washes in between. The canyon is capable of holding water in deep pools throughout the year, necessitating deep wading at a minimum and potential short swims. As the season permits travel only during the late fall and winter, hypothermia is a significant risk, and all participants should be prepared with wet/dry suits and dry bags for additional clothes. Each rappel is progressively longer, culminating in a spectacular 200 foot drop into the very head of Johnson Canyon. This hike requires the following gear: Harness Rappel device Wet/dry suit Dry Bags 400 feet of rope