More Questions Than Answers
If you cut a slice through a tree you can measure its rings and know specifically how old it is and you may even be able to tell a little about the years past by the size of the growth patterns.
When the earth erodes away and the layers of sediment are revealed, it is much more difficult to know the age but you can certainly see the centuries or millennia of changes in the earth's surface.
According to the National Park Service, this layer upon layer sequence of sedimentary rock records nearly 200 million years of geologic history. Rock layers in Capitol Reef reveal ancient environments as varied as rivers and swamps (Chinle Formation), Sahara-like deserts (Navajo Sandstone), and shallow oceans (Mancos Shale). (https://www.nps.gov/care/learn/nature/geology.htm)
Genesis tells us of a six day creation and, according to those who align with a young earth belief, many of the compact materials, fossils and chiseled cliffs can be explained by the Great Flood during Noah's time and the Ice Age that followed.
There are a few things I know for certain though, and that is: