The Mercenaries were based out of an encampment built into the side of a mountains. It consisted of several small buildings and tents with many chambers within the natural caves of the region. The main approach to the camp was blocked by a wooden stockade, manned with archers.
The party was able to find an alternate entrance through the privies. The privies emptied into a cave system that opened to the surface some distance from the camp.
The base is currently in ruins, the buildings are burned, many of the cave entrances are collapsed, and the stockade is breached at multiple locations.