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 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
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 1913, President Woodrow Wilson signed legislation approving the construction of the O’Shaughnessy Dam to inundate the Hetch Hetchy Valley inside Yosemite N
In the 1920's the thirsty city of San Francisco reached deep into Yosemite National Park to build the O'Shaughnessy Dam on the Tuolumne River, diverting one-thi