The World's Greatest Geological Wonders: 36 Spectacular Sites Season 1 Episode 18 Devils Tower--Igneous Enigmas

TV-PG
July 26, 2013
31 min

Famous as the landing pad for aliens in the movie Close Encounters of the Third Kind, Devils Tower in Wyoming is an otherworldly geological formation. Discover how this massive tower of igneous columns developed. Along the way, investigate why nature loves hexagons.

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The World's Greatest Geological Wonders: 36 Spectacular Sites, Season 1 Episode 18, is available to watch and stream on The Great Courses. You can also buy, rent The World's Greatest Geological Wonders: 36 Spectacular Sites on demand at Apple TV Channels, Prime Video, Amazon online.