Yosemite: Hetch Hetchy

In the northwestern corner of Yosemite National Park is Hetch Hetchy, the Tuolumne River watershed. It's the "other" scenic valley in the national park.

The National Park, established by Congress in 1890, has a long standing relationship with San Francisco. The O'Shaughnessy Dam was completed in 1922 and provides water and power for the city and county of San Francisco.

The Tueeulala Falls (upper) and Wapama Falls (lower) help fill the reservoir.

Hetch Hetchy Dome is at the center while Kolana Rock is to the right. This valley gives evidence to the debate. Should scenic valleys remain pristine for viewing by the many or should they be used (construct a dam) to provide water for some?