'Sentinel Rock and Fall', 1872. The granite Sentinel Rock, and Sentinel Falls, Yosemite National Park, California, USA. Sentinel Falls is a tiered waterfall 1,920 feet (590 metres) high. From "Picturesque America; or, The Land We Live In, A Delineation by Pen and Pencil of the Mountains, Rivers, Lakes...with Illustrations on Steel and Wood by Eminent American Artists" Vol. I, edited by William Cullen Bryant. [D. Appleton and Company, New York, 1872]