Pokémon Diamond and Pearl/Mt. Coronet south

Mt. Coronet (Japanese: テンガンざん Mt. Tengan) is part of a long range of mountains that divide the Sinnoh region in half. Most of it is a deep cave, though there are several above-ground areas. The name is a reference to the word corona. This time, Team Galactic has headed up here to accomplish their goal of creating a new world. Of course, you have to stop them.

The mountain's peak is the Spear Pillar, where Dialga or Palkia are awakened, and where the Hall of Origin is reached.

Climbing the Mountain
Take the entrance from Oreburgh City or Hearthome City. If you take the wrong entrance, a lost Galactic grunt will tell you where to go. Surf on the pool, then Rock Climb to the stairs. In the next room, the wild Pokemon get MUCH tougher. Evolved forms of Pokemon will start showing up. Head for the back of the room, then keep climbing. From now on, Galactic Grunts will start appearing in the caverns, so deal with them. Eventually, you will find an exit, leading toward...