The mound itself sits waterlogged and low, enclosed by a shallow fosse and a slight earthen bank, the whole thing easy to overlook on flat, poorly drained ground unless you happen to know what you are looking at.

This is a ring barrow, a type of Bronze Age funerary monument consisting of a circular mound surrounded by a ditch and outer bank, built to mark a place of burial or ceremonial significance. They are found across Ireland in varying states of preservation, though few have had a road driven quite so directly through them. The Ballycomoyle example sits on ground with open views to the south-east and higher land rising to the west, which suggests the location was chosen deliberately, as was common with these monuments, where visibility and landscape setting seem to have mattered to those who built them. Forty metres to the south, the Ordnance Survey six-inch map records a large spring well simply called The Big Well, a proximity that may or may not be coincidental but is the kind of detail that tends to accumulate meaning over time.