S2, E6: Examining the debate over whether the spectacular Yosemite Valley was formed from gigantic glaciers or a cataclysmic rifting of the Earth.
Documentary · Dec 22, 2009 · 44 min
Information
- Released
- 2009
- Run Time
- 44 min
- Rated
- PG
- Region of Origin
- United States
- © 2009 A&E Television Networks. All Rights Reserved.
Languages
- Original Audio
- English
- Audio
- English (United States) (AAC)
- Subtitles
- English (CC)
Accessibility
- Closed captions (CC) refer to subtitles in the available language with the addition of relevant non-dialogue information.