No hollow in the ground, no protruding stonework, no visible clue of any kind marks where it sits. The surface is simply grass, grazed and unremarkable, giving nothing away.

A souterrain is an underground stone-lined passage or chamber, typically built during the early medieval period in Ireland. They were constructed beneath or beside ringforts and associated settlements, and their exact purpose is still debated; storage, refuge, and ventilation have all been proposed. What makes the Maulyclickeen example quietly interesting is not any feature it displays, but the fact that a second souterrain of the same type lies roughly 370 metres to the south-east. Two such structures in relatively close proximity within the same landscape suggests some degree of settlement activity in this area, even if nothing of that occupation now registers above ground.