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'How the Earth Was Made'
9 tonight HISTORY Home to the Half Dome (right), Yosemite Valley in the Sierra Nevada is awe-inspiring, yet controversy rages over whether it was formed from glaciers or a rifting of the Earth.
9 tonight
HISTORY
Home to the Half Dome (right), Yosemite Valley in the Sierra Nevada is awe-inspiring, yet controversy rages over whether it was formed from glaciers or a rifting of the Earth.