John Muir was born in Scotland in 1838, his family emigrating to Wisconsin when he was eleven. He briefly attended the University of Wisconsin before setting off for what he called the “University of the Wilderness.” Arriving in San Francisco in 1868, he quickly sought out “any place that is wild,” and went to Yosemite.
There he kept journals filled with drawings, corresponded with family and friends, and wrote articles about the beauty and science of the glacier-carved Sierra Nevada. Where earlier geologists imagined Yosemite Valley born of cataclysmic earthquakes, Muir theorized that glaciers had shaped it — a reading recorded in the sketches and field notes now held at Pacific.
Muir also met Indigenous people who had been reduced to a meager existence by settlers long before he arrived. His writings carry brief, sparse, and derogatory passages about them and their “degraded” condition — a part of the record the archive preserves rather than obscures. Elsewhere he admitted that “to prefer the society of squirrels and woodchucks to that of our own species must surely be unnatural.”
Muir wanted to “preach the green brown woods to all the juiceless world.” He set his mind to preserving nature, helping to establish and expand many national parks and monuments. He fought to stop a dam in Yosemite National Park meant for San Francisco’s water supply. San Francisco prevailed, and the Hetch Hetchy Valley was flooded — but the loss became one of the founding griefs of the American conservation movement.