1:01:28

A Brief Geologic History of Colorado

1:11:55

Tales Told By Trilobites

2:34:32

Brief Overview of Black Hills Geology/Gold and the Black Hills

1:29:45

Grand Canyon: Young Canyon, Old Rocks (A journey through the geologic history of the Grand Canyon)

1:35:01

Constructing Oregon

1:02:18

T. rex, Triceratops, and MOR: The Dynamic Dinosaurs of Museum of the Rockies

1:24:15

The River That Flows Uphill: Geologic evolution of the upper Mississippi River valley...

1:24:14

Volcanic Features and Highlights of Southern Idaho, Shawn Willsey, M. Sc.