Boyne, River, is one of the chief rivers in the province of Leinster in the Republic of Ireland. It rises in the Bog of Allen, flows northeastward for about 70 miles (115 kilometers) and empties into the Irish Sea.
Drogheda, a port and manufacturing town, stands about 4 miles (6 kilometers) from the mouth of the River Boyne. Other towns along the banks of the river are Trim and Navan. The River Boyne is well known for its salmon fisheries.
The River Boyne is fairly shallow, and in earlier days, the river could be forded easily at a number of places. The Battle of the Boyne (1690) was fought at several of these fords about 7 miles (11 kilometers) from the mouth of the river. William III’s army crossed from the north, driving the exiled James II and his troops back toward Dublin.
