Southern Idaho is a geologic jackpot. Etched in its rugged mountains, incredibly young lava fields, and steep-walled canyons lie compelling evidence of amazing geologic events, including breccia from one of the largest meteorite impacts in the world. Join geology professor and author Shawn Willsey as he uses clear prose, concise illustrations, and dramatic photographs to tell the stories of 23 amazing geologic sites. Learn how Ice Age floods carved the Snake River Canyon, how tree moulds and lava tubes formed at Craters of the Moon, why 200 individuals of Idaho's state fossil – the Hagerman Horse – died and were preserved in one place, and where the land surface ruptured during the 1983 Borah Peak earthquake
Shawn Willsey, a geology professor at the College of Southern Idaho, also teaches whitewater rafting and rock climbing. Born in Arizona as an Air Force brat, Shawn lived all over the western United States during his childhood. He earned a BS in geology from Weber State University and a MS in geology from Northern Arizona University. Shawn conducts research and leads geologic field trips in a variety of locations throughout the West and in Scotland, Iceland, Hawaii, and Costa Rica. He has lived in Twin Falls since 2004 with his wife, Erika, and three children.