Northern Ireland
Slievenaglogh
584M
1917FT
About Slievenaglogh
Positioned on the famous Mourne Wall between Slieve Muck and Slieve Meelbeg, this rugged peak offers a quintessential Mourne experience. Its stony terrain and steep southern slopes provide a dramatic vantage point directly over the Silent Valley Reservoir, making it a rewarding inclusion in a multi-summit ridge walk.
Key Statistics
Rank
21st Highest in Region
Parent Range
Mourne Mountains
Prominence
?
41m
Nearest Town
Castlewellan
Geology
Mourne Granite & Silurian Shale
Classifications
Find It
OS Grid Reference
J327291
Latitude
54.1938°N
Longitude
5.9664°W
Did You Know?
- •The name Slievenaglogh is derived from the Irish 'Sliabh na gCloch', which translates as 'Mountain of the Stones'. This is a literal description of the extensive granite scree and boulder fields that define its upper slopes.
- •The summit is bisected by the Mourne Wall, a 22-mile dry stone boundary built between 1904 and 1922. The wall serves as an unerring navigational aid for walkers ascending the steep, grassy pull from the Col of Glandun.
- •The peak offers one of the best perspectives in the range for viewing the engineering of the Silent Valley. From the summit, you can look straight down the length of the reservoir to the sea, with the massive granite tors of Slieve Bingian framing the eastern shore.
- •It is a key waypoint on the 'Seven Sevens' challenge, a demanding 18-mile circuit of all the Mourne peaks over 700 metres. While Slievenaglogh itself falls short of that height, it must be crested to maintain the high ridge line between the bigger summits.
- •If you find the terrain particularly punishing on the ankles, remember that the local ancestors were literal-minded people; they named it the mountain of stones for a very specific, and currently very obvious, reason.
