Neither appears on Ordnance Survey maps, and the rough pasture around them gives little away, just low irregular mounds of stone about a metre high, a grass-grown bank running eastward, and scattered stonework that forms no clear pattern. The place is, in the most literal sense, easy to walk past without realising anything is there.

Souterrains are underground stone-built passages or chambers, constructed during the early medieval period in Ireland, most likely for storage or as places of refuge. This pair at Ochtaibh follows the general form well. The eastern opening, just 80 centimetres wide and 60 centimetres high, leads into a carefully made passage 3.5 metres long, its walls in regular coursed drystone, its roof formed by seven lintels, its southern end sealed by a single large slab. The western opening is wider but dramatically lower, only 23 centimetres high at its mouth, dropping two metres down into a three-metre passage whose southern section is cut directly from bedrock rather than built. Near the southern end of that passage, an oval creepway, roughly 90 by 60 centimetres, has been tunnelled through rock and leads into a further passage that appears to extend southeastward. That continuation is inaccessible, but its direction suggests it may connect with the eastern passage, meaning what looks like two separate features on the surface could be parts of a single underground system. The detail of the rock-cut sections and the creepway indicates considerable effort, and implies that whoever built here had specific ideas about how the interior space should function, even if those ideas are no longer entirely legible to us.