Arches national park lies on top an underground evaporate layer or salt bed, which is the main cause of the formation of the arches, spires, balanced rocks, sandstone fins, and eroded monoliths in the area. It is a dynamic – ever changing – land with new forming and disappearing arches, spires, fins, windows, pinnacles, and miraculously balanced rocks taking place every year. Someone said it could happen that this park will disappear if all arches fall. Hopefully it stands over there forever.