1:21:05

Mt St Helens, the 42nd Anniversary

1:01:28

A Brief Geologic History of Colorado

1:07:23

Geology of North Carolina

48:52

Nevada: America's True Golden State

1:29:45

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

1:13:44

Earthquake Science and Impacts of a Major Earthquake on the New Madrid Seismic Zone

1:35:01

Constructing Oregon

2:34:32

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