When Carleton Watkins photographed the remote Yosemite wilderness, America was not yet a century old. Conscious of their country's lack of a national cultural identity, Americans adopted particularly dramatic geologic formations such as Cathedral Spires as their version of ancient ruins and soaring Gothic churches. The great pine tree in the foreground here became another form of this uniquely American history. Watkins's images helped define America's preference for landscape views depicting rugged wilderness and celebrating spectacular landforms on the grandest of scales.