John Muir advocated conservation programs ?
John Muir advocated conservation programs adopted by President Theodore Roosevelt, who in 1903 accompanied Muir on a camping trip to the Yosemite region. In 1908 the government established the Muir Woods National Monument in Marin County, California
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10661615
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45209938
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Mary Evans / Everett Collection
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Adopted Advocated Camping Conservation Established Marin Muir Naturalists Programs Yosemite
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