|Wednesday, Apr 24, 2013 - 7:00 AM
"Devils Postpile National Monument"
This episode explores one of the most unique phenomena in geology; Hexagonal pillars of Basalt lava that were revealed during the last Ice Age. Located in the Eastern Sierra, this rare and beautiful feature ranks as one of the world's finest examples of columnar basalt. The region reveals a volatile geologic history, with reminders bubbling up from the valley floor. D
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