The River That Flows Uphill: Geologic evolution of the upper Mississippi River valley...
1:02:18
T. rex, Triceratops, and MOR: The Dynamic Dinosaurs of Museum of the Rockies
1:29:45
Grand Canyon: Young Canyon, Old Rocks (A journey through the geologic history of the Grand Canyon)
1:24:14
Volcanic Features and Highlights of Southern Idaho, Shawn Willsey, M. Sc.
13:06
How the US Accidentally Split its Longest River in Two...
1:05:27
Live: Exploring the Wonders of our Solar System | The Planets | BBC Earth Science
26:51
Iowa Land and Sky: The Mississippi River
2:34:32
Brief Overview of Black Hills Geology/Gold and the Black Hills
1:28:45