In the wake of the devastating 1906 earthquake and fire, the city of San Francisco desperately needed reliable supplies of water and electricity. Its mayor, Jam

In 1913, President Woodrow Wilson signed legislation approving the construction of the O’Shaughnessy Dam to inundate the Hetch Hetchy Valley inside Yosemite N

A lively study of America's first environmental battle describes how, in 1913, Congress authorized the construction of the Hetch Hetchy Dam and Reservoir within

In the classic nature work, The Yosemite, the great American naturalist, John Muir, describes the Yosemite valley's geography and the myriad types of trees, flo

When water from the Sierra Nevada reached the San Francisco Bay area in 1934, it was greeted by a national celebration after two decades of grueling constructio