John Muir, father of the national parks and Sierra Club

John Muir, father of the national parks
Originally uploaded by trudeau

John Muir (1838 – 1914) was one of the earliest mountain men of California.

He was a Scottish-born American naturalist, says Wikipedia, an author, and early advocate of preservation of wilderness in the United States.

His letters, essays, and books telling of his adventures in nature, especially in the Sierra Nevada mountains of California, have been read by millions.

His activism helped to save the Yosemite Valley, Sequoia National Park and other wilderness areas. The Sierra Club, which he founded, is now one of the most important conservation organizations in the United States.