08/28/2026
Faculty Friday: Shawn Willsey, Distinguished Professor of Geology
Shawn Willsey has been teaching geology at CSI for 22 years, helping students understand the stories behind the landscapes they see every day. He teaches Physical Geology, Historical Geology, Natural Disasters, Geology of National Parks, and Field Geology.
Shawn has always been fascinated by canyons, rivers, mountains, volcanoes, and the processes that create them. That curiosity led to a career in geology and eventually teaching, where he gets to introduce many CSI students to the subject for the very first time. His classes combine discussions, demonstrations, activities, and plenty of time in the field. Students learn how to separate observations from interpretations, analyze evidence, and understand the natural processes shaping the planet. Shawn says one of his main goals is for students to see the world differently and start recognizing the geologic stories happening all around them.
Before teaching, Shawn worked as a professional hydrogeologist and is a licensed professional geologist in Idaho. He is also the author of Geology Underfoot in Southern Idaho and co-author of Roadside Geology of Idaho. Outside of CSI, geology is still a pretty big part of Shawn's life. He travels to explore interesting landscapes and creates educational geology videos for an audience around the world through his YouTube channel. He also enjoys rock climbing, whitewater rafting, hiking, and cross-country skiing.
His advice to students: stay curious, get as much hands-on experience as you can, and be willing to explore where geology can take you.
Learn more about Geology at CSI:
https://www.csi.edu/programs/geology/default.aspx