Fairy fort / stone ringfort in Oldabbey

Fairy fort in Oldabbey, County Limerick: a roughly circular cashel, 27.8 by 30 metres, with a scarped edge half a metre high and nearly three metres wide, best preserved from the east to the southeast. It sits in pasture on a gentle northeast-facing slope, its uneven interior hiding a shallow depression in the northeast quadrant. People may have lived there, marked territory, or simply avoided it after dark; the stones no longer argue about which.