A color lithograph from 1866 called The Rocky Mountains: Emigrants Crossing the Plains.

This 1866 Currier and Ives color lithograph is by artist Francis Florabond Palmer, in the style of the Hudson River School. Against a snow-capped mountain landscape, a long train of ox-drawn wagons crosses a river valley accompanied by two Indian guides on horseback. Women and children sit in the wagons, men drive the oxen with whips, and a camp is visible in the background.