Ganglion Antropolis

The Ganglion Antropolis (Japanese: グロウス洞窟基地, Gurousu Dōkutsu Kichi, Growth Cave Base) is an Unexplored Territory in Xenoblade Chronicles X. It is a Ganglion base located in caverns directly beneath Cauldros's G'nahan Villa, and can only be accessed by crossing the lava field northeast of FN Site 505. It must be entered on foot, as the entrance is too small for Skells. As with all Unexplored Territories, its discovery yields an achievement (Invading the Ganglion Antropolis).

The entrance to the Antropolis is blocked by a transparent barrier which cannot be removed until a key is obtained during Definian Downfall, and similar barriers block access to parts of the Antropolis until three more keys are obtained during the mission.