This is a photo from Bruce Point in Bryce Canyon, which is technically is not a canyon since it was formed by weather erosion rather than a central stream. The exposed layers of rock are about 100 million years old. In nearby Zion National Park, the exposed layers are 140 to 240 million years old. The exposed layers in the Grand Canyon are 200 to 600 million years old. There are shared layers between these parks, creating what is called the Grand Staircase. You can look out over the Grand Staircase from a spot in Bryce Canyon called Yovimpa Point.
I have a hard time wrapping my head around the idea of something being 100 million years old. How much harder to grasp the concept of God being truly ageless.