River Boyne

The River Boyne (Irish: An Bhóinn or Abhainn na Bóinne) is a river which flows through Leinster, Ireland. It is about 112 kilometres (70 mi) long. The Boyne rises near Carbury, County Kildare and flows north-east along the border with County Offaly before entering County Meath to reach the Irish Sea between Mornington, County Meath and Baltray, County Louth.

Source: Wikipedia https://en.wikipedia.org/wiki/River_Boyne