While the canyons in Utah and Arizona are awe-inspiring regardless of one's understanding of the forces that sculpted them, it can be informative to explore the geologic times involved and some of the terms used to describe the features.
I picked up a book on the geology of southern Utah at a gift shop and enjoyed reading about the difference between a bridge and an arch, synclines, anticlines, compression, fins, hoodoos, mesas, buttes, and spires – basically reading the cycles of change.






























