" and we knew that long after we should have forgotten the simple rivulet it would still be plodding its patient way down the mountain sides, and canyon-beds, and between the banks of the Yellowstone; and by and by would join the broad Missouri and flow through unknown plains and deserts and unvisited wildernesses; and add a long and troubled pilgrimage among snags and wrecks and sandbars; and enter the Mississippi, touch the wharves of St. Louis and still drift on, traversing shoals and rocky channels, then endless chains of bottomless and ample bends, walled with unbroken forests, then mysterious byways and secret passages among woody islands, then the chained bends again, bordered with wide levels of shining sugar-cane in place of the sombre forests; then by New Orleans and still other chains of bends—and finally, after two long months of daily and nightly harassment, excitement, enjoyment, adventure, and awful peril of parched throats, pumps and evaporation, pass the Gulf and enter into its rest upon the bosom of the tropic sea, never to look upon its snow-peaks again or regret them. "

― Mark Twain , Roughing It