Slieve Gullion is a prominent mountain located in County Armagh, Northern Ireland. It stands at 573 meters (1,877 feet) and is part of the Ring of Gullion Area of Outstanding Natural Beauty. The mountain is known for its scenic views, diverse wildlife, and rich geological features, making it a popular destination for hikers and nature enthusiasts. The summit of Slieve Gullion features a unique ancient burial site known as the Gullion Cairn, which dates back to the Neolithic period. The area is also home to various walking trails, providing visitors with opportunities to explore its lush landscapes and enjoy the surrounding natural beauty.