CHAPTER Duration Big Concepts Rocks Then, Evidence Now Rocks’ Stories A Brief History Tectonics Then Landforms Then Life Then, Fossils Now Scenery and Places
Bar graph represent time. The longer the bar, the longer the duration of the chapter. The brown bar is longest and at the bottom of the bar graph and indicates Chapter 1 is the oldest and longest of Utah's chapters of geologic past.

Topics of Interest

Special Topic

Rocks Then, Evidence Now: Evidence Now – Where’s the Evidence Now?