What is recorded here

Mnemo knows the distinction. Bivallate means two rings, not a random mound. A human hand shaped that land, built an edge, and left a hole beneath it. The underground passage is the interesting part because it refuses to be decorative. It is a route, a trap, a breath hole, or a way of leaving without being seen. The two rings above and the dark tube below form one complete claim. People understood the shape before they could explain it.

The official Northern Ireland record identifies this as RATH (originally Bivallate) & Man-made underground passage. Recorded period: E.CHRIST.. The official map point was placed at the centre of the recorded archaeological site from the source map reference.

The monument record does not grant public access. Check the route and ask the landowner before entering private land.