Well, its not a secret really but it sort of is. There is mining in the dungeon, but you need to be strong enough to survive the fall which means you need your character more developed. There used to be another entrance but its now closed off (though rumor has it that its still possible to get there). That said once you get to the dungeon, you still have to find the places to mine. They are very specific for each metal, and the dungeon is quite large. Rules forbid someone to post solutions to quests, and things like that so I\'d assume maps showing mining locations would be banned as well. I do think that a map showing the locations of things like the magic shop or the other towns, etc... should be sold cheap from an NPC so that people can find their way around the world.