1:24:35

GEOL 101 - #25 - Columbia River Basalts II

1:16:07

GEOL 101 - #1 - Introduction

1:17:50

GEOL 101 - #22 - Sumatra & Japan

1:53:33

GEOL 101 - #27 - Cascades II

1:11:15

Ghost Volcanoes in the Cascades

1:26:23

Dating the Ice Age Floods

1:54:24

GEOL 101 - #18 - Styles of Volcanism

56:05

Cascades Volcanoes: When Sleeping Giants Wake