Geologic Review

The landscape of Devils Tower National Monument is the result of a unique interaction of sedimentary, igneous and erosional processes.

The deposition of a thick layer of sedimentary rocks set the stage for subsequent events.

Igneous activity created the Tower itself

And, finally, erosional processes exposed it to the world.



Devils Tower Main Index

Geologic Overview

Sedimentary Rocks

Igneous Rocks


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