Armagh

From its highest point at Slieve Gullion, in the south of the County, Armagh's land falls away from its rugged south with Carrigatuke, Lislea and Camlough mountains, to rolling drumlin country in the middle and west of the county and finally flatlands in the North where rolling flats and small hills reach sea level at lough Neagh.

County Armagh's boundary with Louth is marked by the rugged Ring of Gullion rising in the south of the county whilst much of its boundary with Monaghan and Down goes unnoticed with seemless continuance of drumlins and small lakes. The River Blackwater marks the border with County Tyrone and Lough Neagh otherwise marks out the County's northern boundary.

There are also a number of uninhabited islands in the county's section of Lough Neagh: Coney Island, Coney Island Flat, Croaghan Flat, Derrywarragh Island, Padian, Phil Roe's Flat and the Shallow Flat.