YosemiteStreaming Video - 2011
The Sierra Nevada contains one of the most awe-inspiring geological features on the planet: Yosemite Valley. Yet how this extraordinary valley formed has been the subject of controversy for more than a century. Was it carved by gigantic glaciers or created by a cataclysmic rifting of Earth's crust? This program investigates.
Publisher: New York, N.Y. : Films Media Group, , c2009
Characteristics: 1 streaming video file (45 min.) :,sd., col
Alternative Title: How the Earth was made (Television program)