Arches National Park is home to more than 2,000 natural sandstone arches, the largest concentration found anywhere in the world. These arches have formed over time, starting from cracks in sandstone fins that begin to widen from mechanical and chemical weathering. Besides arches, the park also contains other geological formations including spires, pinnacles, towering sandstone cliffs and balanced rocks. There is a paved scenic drive through the park that provides access to many viewpoints and hiking trails to catch a better glimpse of the desert scenery and interesting rock features.