A Billion Years of Early Earth History: Perspectives from MN’s Nearest (Canadian) Neighbor
1:29:45
Grand Canyon: Young Canyon, Old Rocks (A journey through the geologic history of the Grand Canyon)
1:11:55
Tales Told By Trilobites
1:01:28
A Brief Geologic History of Colorado
47:45
The Evolution of the Pacific Northwest Coast: Abundance, Prosperity & Complexity
1:28:23
Glaciation and the Great Lakes, an epoch in the making; Andy Breckinridge, PhD, UW-Superior
1:09:23
Exotic Terranes of the Pacific Northwest
1:24:15
The River That Flows Uphill: Geologic evolution of the upper Mississippi River valley...
1:28:45