In June 2016 four anglers, Stephen Murphy, Kieran Mahar, William Gregory and David Johnston, found the remains of a prehistoric logboat in the River Boyne (An Bhóinn) in Ireland. A sample of the wood has now been radiocarbon dated to between 3,300-2,900BC. This coincides with the construction of the Neolithic passage tombs of the Brú na Bóinne including Knowth, Dowth and Newgrange in the Boyne Valley through which the river flows. The remains of the logboat consist of a 3m length of wood, which would have formed the base of the boat.