Stereographic image of Mammoth Hot Springs, Yellowstone National Park, from a photo by William Henry Jackson

Stereographic images, like this one of Thomas Moran at Mammoth Springs, created the illusion of depth when viewed through a stereoscope. William Henry Jackson (American 1843-1942), Hot springs on Gardiner's River, Upper basins, 1871, albumen print, The Miriam and Ira D. Wallach Division of Art, Prints and Photographs: Photography Collection, The New York Public Library, NYPG92-F117.