He was integral in getting national monument protection status for that area as well as Sequoia.
Though he traveled around the world, his main focus remained on the Western United States where he wrote extensively about the local plants and animals.
Muir died in California of double pneumonia at the age of 76.
John Muir's obituary corrected 100 years later
Theodore Roosevelt (1858 - 1919) (left), the twenty-sixth President of the United States, with the Scottish born American conservationist John Muir (1838 - 1914) on Glacier Point in Yosemite, California. (Photo by MPI/Getty Images)
Profile portrait of American naturalist John Muir (1838 - 1914). (Photo by Hulton Archive/Getty Images)
Portrait of John Muir, circa 1900s. (Photo by Fotosearch/Getty Images).
American naturalist and author John Muir (1838 - 1914), left, stands with fellow naturalist and essayist John Burroughs (1837 - 1921), right, on the latter's 75th birthday, April 1912. (Photo by Interim Archives/Getty Images)
President Theodore Roosevelt and conservationist John Muir (to the President's left) in Yosemite Valley, California, 1903. (Photo by PhotoQuest/Getty Images)
North America, USA, Florida, Cedar Key, The St. Clair Whitman State Museum Site Informational Sign side One regarding John Muir at Cedar Key. (Photo by: Education Images/UIG via Getty Images)
A photograph of author and naturalist John Muir and his dog. California, California, 1900. (Photo by Underwood Archives/Getty Images)