Keywords: yellowstone national park yellowstonenationalpark blackandwhite monochrome photo border outdoor black and white July 28-30, 1871 No. 254. THE WALLS OF THE CAÑON, as seen from below. William Henry Jackson; Catalog #20703 July 28-30, 1871 No. 254. THE WALLS OF THE CAÑON, as seen from below. William Henry Jackson; Catalog #20703 |