Drogheda is situated on the River Boyne. is the main river that flows through the southern area of Co. Louth. Drogheda is one of the oldest towns in Ireland. It is located on the Dublin–Belfast corridor on the east coast of Ireland, mostly in County Louth but with the southern fringes of the town in County Meath, 49 km or 30 miles north of Dublin. The town is very proud of its River Boyne and the history of the town and churches. Although the source of the Boyne river is at the Bog of Allen in Co. Kildare, it travels over 70 miles to reach the sea at Mornington in Co.