OK, I need to pay better attention, boys and girls!!  The Cheyenne River Reservation… a brief mention, but one that got past me!!  This is why Cherry, still being ignored, is asking Mark whether he is going to South Dakota!  In Tornado Season no less!!  Lord, man, what ARE you thinking!?

According to Doc, I see that one has to be not just smart, but brilliant, to run a dude ranch… and there is a big mention of the reservation in the Travel South Dakota website…

So… Mark is leaving and Dirty is on his way… oh sweet tension!  You could cut it with a knife!  Which is probably what Dirty has in mind…