This is the Hetch Hetchy National Park. A dam was installed after the great San Francisco earthquake and the valley flooded.
Recently, there has been a movement to restore Hetch Hetchy to its former glory, something I fully support after going there (and despite my love of the architecture of dams)
http://www.hetchhetchy.org
Nice video, cant wait until the end of the month when I get to go.
1guy5girls 10 months ago