Just found some new strings while searching the web on what is going on in the mountains in Gendarran fields near Lion's Arch.
109710_0931 AoE Loot 109710_0930 Automatically loot all lootable objects in a radius around you. 109822_0170 AoE Loot On Interact 109822_0171 AoE Loot whenever you press the Interact key.
On the strange factory itself, it's something hidden inside the mountain south of Broadhollow waypoint. If you exit through the southern gates of the Ascalon Settlement, the mountain seems to disappear, but you can see parts of the things that are inside it.