I thoroughly enjoyed listening to the field trip to Thorn's Gate and Thorin's Hall, I just wish I could have been there for the live class. I had never considered that Thorin's Hall (and the rest of the dwarven ruins in the Blue Mountains) may have at one time been associated with the dwarf clan(s) that delved either Nogrod or Belegost. It is such a simple, logical conclusion that I am embarrassed it never occurred to me before. I'm forced to wonder if the original clan that settled in the Blue Mountains was non other than the shifty Dourhands. They certainly are not of the same clan as their Longbeard cousins (Durin's folk) and since it appears that Skorgrim's countenance is plastered all over Sarnur that seems to be a reasonable assumption. Besides, wasn't it the Dourhands that were residing in Thorin's Hall during the Prologue? Or maybe they were squatting too...