25:28

How & When the Appalachian Mountains Formed & The Rocks Found Here! GEO GIRL

18:34

Catastrophe and Cartography - Ice Age Floods Visualized

19:19

The Appalachian Rainforest

48:46

A Tour of Earth's Ancient Supercontinents

39:42

The Formation of the Appalachians

56:47

How did the Rocky Mountains Form?

1:20:43

Evolution of the Appalachian Mountains

25:30

Where Terranes Collide: The Geology of Western Canada