The Northern Range can only be accessed once HM Surf has been obtained from Solar Cave and the Southern IslandFriend Area has been purchased. The morning after these requirements have been fulfilled, a robbery takes place in Pokémon Square. The culprit is followed to the Northern Range and must be defeated to learn the motivation. Once the dungeon has been completed for the first time, a sequence of events will occur, giving the player access to Pitfall Valley. The visual theme for 1F-7F is a rocky cave with lots of small ponds of water. 8F- 16F is a craggy area filled with mist and clear water, and 17F-24F- is a snowy peak.
Latios will stay in Pokémon Square after being defeated. It will freely offer to join the rescue team on the completion of Pitfall Valley, alongside his sister, Latias. Kecleon Shops can appear in this dungeon.