The "Three Wolves" mountains where the Land of Iron resides.
The Land of Iron (鉄の国, Tetsu no Kuni) is an icy, snow-covered country led by Mifune. It is politically unusual in that it has remained neutral and never been involved in the ninja wars. In fact, the shinobi have a rule since long ago that they would not meddle with the land. Despite this, it is said to have an incredibly strong military which, instead of ninja, is manned by samurai. It is located among three mountains called the Three Wolves (三狼, Sanrō).
The Kage Summit will be held in the Land of Iron due to its security and neutrality, which it has prepared for by strengthening its guard. According to the Tsuchikage, Ōnoki, it has its own distinct culture, and there is "nothing fun about" meeting there.