Slievelamagan is a Hewitt of 702.2 m in Newry, Mourne and Down. All four of its nearest neighbours are higher, up to Slieve Donard at 850 m.
On the Hewitts height ladder it sits between Pike of Blisco (703 m) and Barrslievenaroy (702 m). The highest point is recorded as rock outcrop, not a cairn.