An Effort to Undo an...

An Effort to Undo an Old Reservoir in Yosemite: "For most of the past century, the Hetch Hetchy Valley, 15 miles north of its more famous and bigger sibling within the park, has served as a 300-foot-deep bathtub holding melted snow from the High Sierra for people and businesses in San Francisco and its suburbs. Now a group of environmentalists wants to drain the eight-mile-long reservoir and restore the valley to what John Muir once described as a 'grand landscape garden, one of nature's rarest and most precious mountain temples.'"