Big Hole: Oregon Volcano Hidden in Plain Sight
12:08
Crack in the Ground and the Four Craters Lava Field
19:37
Oregon Gold: Bohemia Mountain Gold Mining District
7:23
Hole in the Ground: Breathtaking Crater in Oregon’s High Desert
5:57
Por que há um grande buraco nas rochas vermelhas de Sedona, Arizona? Geologia explicada
28:36
Steens Mountain
1:07:07
The 13 Active Volcanoes in Oregon
13:24
Why Mount Rainier Is The United States' Most Dangerous Volcano
49:57