FN Site 505 is a Miranium Deposit in Xenoblade Chronicles X. It is located on the lower level of Cauldros. An easy approach for beginners is to swim along the northwestern side of Cauldros towards the north until the path inland is found. Continuing along the path southeast leads to the Scenic Viewpoint Beneath O'rrh Sim Keep and eventually to FN Site 506. Beyond the lava to the northeast lies the entrance to the Unexplored Territory Ganglion Antropolis. The Emerian Battlegrounds can be found by going onto the upper level after following the southwest path.