These two explorers crossed the Great Plains of North America one year apart, Burton in 1860 and Clemens in 1861. I have clipped large sections of Burton's book, "The City of the Saints, and Across the Rocky Mountains to California" for my web site project "Mark Twain's Geography" as Burton visited the same Overland Coach stations as did Clemens. Mark Twain, in "Roughing It", is very sparse in his descriptions of the stations and mentions only a few by name.