Theodore Roosevelt, left, and John Muir at Glacier Point in Yosemite, 1903. The same year he made a trip to Yellowstone and set down the cornerstone of what is today the Roosevelt Arch at the park's north entrance. During the Yellowstone trip, he shared company with naturalist and essayist John Burroughs. Photo courtesy NPS
Theodore Roosevelt, left, and John Muir at Glacier Point in Yosemite, 1903. The same year he made a trip to Yellowstone and set down the cornerstone of what is today the Roosevelt Arch at the park's north entrance. During the Yellowstone trip, he shared company with naturalist and essayist John Burroughs. Photo courtesy NPS