Learn about the fascinating geologic landscape of City of Rocks National Reserve in southern Idaho with geology professor Shawn Willsey. Here he explains how the scenic fins, spires, and other bizarre rock shapes were formed from the 28millionyearold granite that underlies much of the area.

You can learn more about southern Idaho geology by purchasing Geology Underfoot in Southern Idaho and Roadside Geology of Idaho. Both available locally or on Amazon.

I love doing these videos and will continue to do so but if you want to provide support or much appreciated gas money, you can send support via:

Venmo @ShawnWillsey (be sure to put two L's in last name)
or PayPal: https://www.paypal.com/donate/?hosted...
or a good ol' fashioned check to this address:
Shawn Willsey
College of Southern Idaho
315 Falls Avenue
Twin Falls, ID 83303