The Central Pacific Railroad's Jupiter engine passes by a wagon train during the construction of the transcontinental railroad on the north side of the Great Salt Lake, Monument Point, Utah, circa 1868. (Photo by Underwood Archives/Getty Images)
The Central Pacific Railroad's Jupiter engine passes by a wagon train during the construction of the transcontinental railroad on the north side of the Great Salt Lake, Monument Point, Utah, circa 1868. (Photo by Underwood Archives/Getty Images)