Have you wondered why the Hills are gently rounded and where arches come from? Take a half-mile walk to learn about a few of the geological wonders of the Hills.   All programs are free of charge. All programs meet at the Mobius Arch Trailhead Parking lot, unless stated otherwise. Programs are outside and subject to cancellation without warning. Children must be accompanied by an adult on all programs. Wear sturdy walking shoes and dress for changing weather. Bring water and snacks.