@Joshua
Well, I believe that Drungar is somewhere in the northern border of Bone Dry Desert because according to the movie prequel chapter book, “The Stormy Road to Canterlot”, Tempest heads through the desert and saw the wreckage of one of the Storm King’s airships that Capper and Chummer have stole. The same ship that crash-landed npin the Bone Dry Desert not too far from Klugetown. And then, when Tempest rides on a caravan pulled by Rambler to Bleak Valley, I believe that the Bleak Valley that contains the Forgotten Hills which is west of Bleak Valley is located west of the mountains that peaks through the Storm of Clouds and possibly under the Sea of Clouds. Since the Forgotten Hills is shown to have snow in the movie prequel comics.

Good to know we have Klugetown, but where’s Drungar?