John Muir - Preservationist

(PBS - National Parks)
        John Muir was born in Scotland and moved to the United States as a child. He had a spiritual connection with the environment and believed God was revealed through nature. 
        He founded the Sierra Club and fought to save  Hetch Hetchy Valley.   He died in 1914, a year after the Raker Act allowed the damming of Hetch Hetchy. (see John Muir Obituary) Some say his death was hastened because of the grief of losing Hetch Hetchy.

John Muir Describes Hetch Hetchy Valley
(Restore Hetch Hetchy - Yosemite's Lost Valley)