It has a name on the map and a classification in the archaeological record, but the details that would normally accompany such a site, its dimensions, its condition, any history of excavation or local lore attached to it, remain undigitised and effectively out of reach for the casual enquirer.

Barrows are among the most widespread prehistoric monument types in Ireland, raised during the Bronze Age as burial mounds for individuals or small groups, sometimes accompanied by pottery, personal ornaments, or cremated remains. Mayo contains dozens of them, scattered across townlands whose very names often preserve fragments of older landscapes. Knockaun itself suggests a small hill or hillock, from the Irish cnoicín, which is precisely the kind of elevated ground where a barrow might logically be sited, offering visibility across the surrounding terrain. Beyond that topographical logic, the record for this particular mound is, for now, silent.