Glad to see that some of my suggestions have been useful. Those look brilliant, Woodelf!I wish I could do as well...
About Meneltarma, though - shouldn't it be sitting on top of some sort of mound or small hill?
And you would build it discovering it, and digging a small "door"...
That would imply that it could only be discovered in a single, pre-determined location. I doubt this is what you mean, right? It would require special coding in the map generator.