Slieve Gallion

Slieve Gallion
Sliabh gCallann
Slieve Gallion from the southwest
Highest point
Elevation	528 m (1,732 ft)
Listing	Marilyn
Coordinates	54°44′N 6°46′W / 54.73°N 6.76°W / 54.73; -6.76Coordinates: 54°44′N 6°46′W / 54.73°N 6.76°W / 54.73; -6.76
Naming
Translation	mountain of the heights (Irish)
Geography
Location in Northern Ireland
Location	County Londonderry, Northern Ireland
OSI/OSNI grid	H8188
Topo map	OSNI Discoverer 13

Slieve Gallion (from Irish Sliabh gCallann, meaning 'mountain of the heights') is a mountain in County Londonderry, Northern Ireland. By road, it is 4 miles (6.4 km) from Moneymore, 8 miles (13 km) from Cookstown, and 8 miles (13 km) from Magherafelt. It is the eastern limit of the Sperrin Mountains range. It has 2 peaks: the southwestern peak at Glenarudda Mountain and Tintagh Mountain reaches a height of 528 metres (1,732 ft), and is the 397th highest peak in Ireland; the northeastern peak reaches a height of 496 metres (1,627 ft), and is the 469th highest peak in Ireland; it is also the furthest-east mountain-top in the Sperrins. The southwestern peak is in Cookstown District, and the northeastern peak is in Magherafelt District. The mountain is part of the parishes of Desertmartin, Lissan and Ballinascreen.

Slieve Gallion is a volcanic plug. The mountain is formed from volcanic-derived igneous rock, and also granite on the southern slopes. It is steep, and has a flat top. There is a telecommunications mast on the northeastern summit. To the west, the landscape consists of blanket bog and coniferous forest; most of the trees in the Slieve Gallion area are Sitka spruce. There are also lodgepole pine trees, as well as oak towards the south of the area. Animal species living in the area include the Irish hare (a sub-species of the mountain hare), the curlew, and the red grouse. The otter can also be found around nearby rivers. Slieve Gallion is classed by the Northern Ireland Planning Service as an area of "High Scenic Value".