Interesting! I think Tad Williams might have been inspired by something like that as he wrote part of his Otherland novels. I don't remember it clearly, but there was a place where the people referred to various places as the body parts of an enormous man. Of course, in that case, those places actually were the body parts of an enormous man.
It might be fun to produce an illustration that combines that kind of oral mapping with a visual representation. Probably beyond my capacity at the moment, though.