Gullion Cairn is a prehistoric burial site located on Slieve Gullion, a mountain in County Armagh, Northern Ireland. This ancient structure is part of a larger complex of megalithic tombs and is believed to date back to the Neolithic period. The cairn consists of a large mound of stones and is associated with rituals and burial practices of early communities. The site is notable for its impressive views and archaeological significance. Visitors can explore the surrounding area, which is rich in mythology and folklore. Gullion Cairn is also part of the Ring of Gullion, an area recognized for its natural beauty and cultural heritage.