A simplified representation of the Grand Canyon’s layered rocks, focusing on the stratigraphy of Cambrian and younger strata that dominate the view from the canyon rim.

A simplifed representation of layered rocks in southern Utah in the area including Bryce Canyon and Zion National Parks.

This eBook contains the stratigraphic columns to the left, descriptions of depositional environments, geologic time scales, national park maps, and a short glossary of geologic terms. This is handy to have on your phone when traveling in the parks.

Note: this eBook should end up in your Downloads folder and should be openable in a relevant eBook reader.