Knocknahillion is one of the Maumturk Mountains of Connemara in County Galway, Ireland. At 607 metres (1,991 ft), it is the 210th–highest peak in Ireland on the Arderin list, and 256th–highest on the Vandeleur-Lynam list. Knocknahillion is in the middle sector of the long north-west to the south-east spine of the Maumturks. The summit is offset to the west of the rocky central ridge of the Maumturks, and its western-facing slopes have a distinctive "diagonal" rock stratification when viewed from the Inagh Valley.
Knocknahillion, viewed from Binn idir an dá Log; behind is the summit of Letterbreckaun
Looking north to Letterbreckaun (left), and Knocknahillion (right), across Lough Inagh
Lough Maumahoge, Knocknahillion (left) and the ridge to Letterbreckaun
Letterbreckaun to Knockhillion ridge (middle, right), with Binn idir an dá Log (centre, back)
The Maumturks or Maamturks is a mountain range in Connemara, County Galway, in the west of Ireland. It is a long, broadly-straight range, consisting of weathered quartzite peaks in its central section. The Maumturks lie east of the Twelve Bens, on the other side of Lough Inagh and the Inagh Valley.
Maumturk Mountains: looking south from Letterbreckaun towards Knocknahillion and Binn idir an dá Log.
The Maumturks range as seen from across the Inagh Valley in the Twelve Bens range. Letterbreckaun is the most prominent mountain to the left (north), followed by Knocknahillion, and then the large Binn Idir an Dá Log summits and ridge. The range then drops into the valley of Máméan, before rising up to Binn Mhór to the right (south)
