Slieve Gallion

Slieve Gallion is the easternmost summit of the Sperrin Mountains, reaching 528 meters with steep slopes and a flat granite top. Its location near Lough Neagh makes it a prominent landmark in the County Londonderry landscape.

Ancient writings from the 7th century mention this mountain under the name Collunt Patricii, meaning the height of Saint Patrick. The name connects it to early Christian history and religious significance in the region.

The mountain served as a gathering place for celebrations and festivals in the region over many centuries. People came here for important occasions, showing how much the place mattered to the community.

A transmission station on the mountain is accessible via a small road starting from Moneymore. The access route is straightforward and offers good entry points for visitors.

Local tradition speaks of a giant named Callann Mór said to be buried on the western slopes. This legendary origin gave the mountain its modern name.

Location: County Londonderry

Elevation above the sea: 528 m

GPS coordinates: 54.73181,-6.76127

Latest update: December 10, 2025 15:47