Less noticed, somewhere in the same townland, is an earthwork of sufficient archaeological significance to have been formally recorded as a protected monument, quietly occupying the same patch of ground as the grandstands and the crowds.

Earthworks is a broad category in Irish archaeology, covering everything from the low, grassy banks of ancient field boundaries to the raised platforms of ring forts, the ditched enclosures of ceremonial sites, and the eroded remnants of medieval settlements. Without more specific detail available for this particular site, it is difficult to say precisely what form the Ballybrit earthwork takes or to which period it belongs. What is certain is that it was considered significant enough to record, which in a townland so thoroughly absorbed by urban expansion is itself a quiet anomaly. Galway's eastern suburbs have swallowed a great deal of older landscape, and the survival of any earthwork in this zone, even partially, speaks to how much archaeology can persist beneath and beside the infrastructure of modern life.