Wagon Train Tracker: Geographic reference is made to "Hayes" (real one is in central Kansas) and a planned railroad tunnel through the Rockies. If yearly chronology of series shown by screen dates is correct, episode is set in 1870 and the Union Pacific Railroad is completed, but oh well. Make Fort Hayes a stand-in for Fort Hall, Idaho and the tunnel plan that for the UP's Echo Canyon, Utah project, and the train is placed in the Fort Hall vicinity at the California-Oregon Trails junction.