"...the plain was interrupted by mesas and buttes, all turning dark purple and gold as the sun sank on their left. It was almost too classically Western; this area had been used for a lot of movies, back FirstSide. Being chased through it by real live Indians intent on killing you gave a whole new perspective to memories of TheSearchers..."
-SM Stirling, Conquistador (New York, 2004), Chapter Twenty, p. 503.
Of course I have read of mesas and buttes but what are they? Google reveals all. I like the "...dark purple and gold..." The Searchers is another Western film reference. I am out of here.