⁴Trench, C.E.F. Slane: Slane Town Trail, Newgrange. Slane: An Taisce, 1995, 14-23.
It should be noted that the motte is not part of the public monument. It is on private land belonging to the Slane estate. According to the author, “If you want to visit it, go down the northwest face of the hill and through the gate at the bottom of the slope."