What town on the Castletown River was the home of a famous radiologist who lived from 1900-1979
Dundalk Dundalk ( , Irish: "Dún Dealgan" , meaning "Dalgan's fort" ) is the county town of County Louth, Ireland. It is on the Castletown River, which flows into Dundalk Bay, and is near the border with Northern Ireland, halfway between Dublin and Belfast. It has associations with the mythical warrior hero Cú Chulainn.
Rockstown Castle Rockstown Castle is a ruined Irish tower house from medieval times in County Limerick, Ireland.