La Noscea, particularly around Camp Iron Lake, would make a lot of sense for the lost city of Nym. If you remember, that was the location of Oschon's shrine. I always thought it was a random place for a Wanderer god to have a permanent shrine, I figured it should be somewhere very high up and twisty and hard to get to. But if the ruins of the city he guarded are nearby (or underneath it) then it would make perfect sense.

That would be a place even a wanderer may feel anchored to.