The 19th Century Rare Book and Photograph Shop "The 'Sentinels,' about 50 feet in circumference, and 275 feet high, stand guard at the entrance of the grove, like giants at the portal of an enchanted palace; and between them, with head uncovered, you pass into this grand temple of nature" (Samuel Kneeland, 1872, Wonders of the Yosemite Valley, and of California, (Boston: Alexander Moore, Lee & Shepard / New York: Lee, Shepard & Dillingham)).
