Enjoy a presentation by geology professor Shawn Willsey to the Geologists of Jackson Hole group in June 2023 at the Teton County Library. Learn about Lake Bonneville, why the lake rose so high, and the amazing erosional and depositional features created by this spectacular megaflood about 17,400 years ago.
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0:00 Introduction
2:33 Talk introduction
6:44 Lake Bonneville
12:12 Rise of Lake Bonneville
17:40 Gem Valley Volcanic Field
29:40 Red Rock Pass
33:19 Bonneville Flood
40:07 Eden Channel
49:56 Celebration Park
51:05 Hells Canyon and Lewiston
52:26 Conclusion
55:50 Questions