The Arkansas Divide

Thomas Moran's watercolor depicts a geothermal landscape of hot springs and snow-capped peaks, likely from the Yellowstone region explored during the artist's expeditions in the early 1870s. Moran was among the first painters to document the American West's dramatic geology, working alongside U.S. Geological Survey teams. His luminous treatment of steam, snow, and distant mountains—rendered in soft washes and precise detail—helped establish visual conventions for representing the Western sublime. These expedition paintings became source material for the chromolithographed illustrations that shaped American geographic knowledge and aesthetic appetite for Western landscapes during the Gilded Age.