Tuolumne River in the Upper Hetch Hetchy Valley Before the Dam

Photograph by J. N. LeConte


"Let me assure you that we have only begun fight, and we are not going to rest until we have established the principle 'that our National parks shall be hold forever inviolate,' and until we have demonstrated to the satisfaction of every one that the American people stand for that principle. We are going to keep up the good fight without fear or favor, 'if it shall take until doomsday.'
- William E. Colby

Tuolumne River in the Upper Hetch Hetchy Valley  before the dam - photo by J.N. LeConte.