Note: this list of places includes island features such as summits, but not islands as such.
SlievenagloghHillSliabh na gCloch A name in Irish DownCounty in NI and in Ulster Province, in Carn List, Granite granophyre Bedrock
Height:445mOS 1:50k Mapsheet: 29Grid Reference: J29879 23017 Place visited by 128 members. Recently by: Carolyn105, melohara, BogRunner1, Colin Murphy, ceadeile, Fenton, Andy1287, abcd, Niamhq, dshields, arderincorbett, jlk, trostanite, shaygo, PPruz I have visited this place: NO (You need to be a logged-in member to change this.)
This is the lower of two peaks in the Mourne Mountains called Slievenaglogh, the other being situated further north near Hare's Gap. This Slievenaglogh overlooks the Silent Valley Reservoir, constructed in the 1920s to supply water for Belfast. Before it was flooded, the Silent Valley was known as the 'Happy Valley'. Labourers from the Happy Valley constructed the Mourne Wall for the Belfast and District Water Commissioners to delimit the catchment area. It is 2-2.5m high and 1m thick, encloses 9,000 acres of land (3,600 hectares) and passes over the summit of many of Mourne's highest peaks.
Slievenaglogh is the 742nd highest place in Ireland. Linkback: https://mountainviews.ie/summit/635/