You’ve probably heard the saying, “You can’t step in the same river twice.” It’s referring to the fact that the river is constantly changing — every water molecule traveling over the river bed changes it in a tiny, imperceptible way. Such is the case with everything in the world. Even seemingly stable things like mountains and rocks continue to change over time. When considering the best national park to visit in Utah, Arches National Park is often at the top of the list. However, it is always changing, even if we don’t notice. Here are 14 before and after photos that show how much this national park has changed in less than a century.
