Big Obsidian Flow

28:16
Saddle Mountains - Volcanic Ash from Yellowstone Explosion

31:24
Smith Rock Volcanic Tuff

57:17
Ancient Rivers of the Pacific Northwest

52:09
Iceland | Lava Lovers 3/4 | Go Wild

14:30
BIG OBSIDIAN FLOW of Newberry Volcano, Oregon: Geologic Insights

7:41
The Secret Summit of Mount Index | Nick on the Rocks

28:15
Lava Butte Sunset

24:51