
In the northwest corner of Yosemite National Park there is a valley that John Muir described as “a wonderfully exact counterpart of the great Yosemite.“ Since Muir's time, Hetch Hetchy Valley has changed. It was dammed in 1923 and a large blue reservoir now covers the valley. Muir opposed the dam, and fellow conservationists lost a long battle to preserve the valley.… Read more.














