Knocknahillion
Knocknahillion (Irish: Cnoc na hUilleann, meaning 'hill of the elbow')[2] is one of the Maumturk Mountains of Connemara in County Galway, Ireland.[5][6] 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.[5] To the southeast of Knocknahillion is the col of Maumahoge (Irish: Mhám Ochóige), which then rises up again to the corrie lake of Lough Maumahoge (Irish: Loch Mhám Ochóige), and eventually to Binn idir an dá Log, the highest mountain in the range at 702 metres (2,303 ft).[5][6][8] The easiest way summit Knocknahillion is a 5-kilometre 2-3-hour route via the pass of Maumahoge; however, because of its positioning on the high rocky central spine of the central Maumturk range, it is also summited in a longer 14-kilometre 5-6 hour loop-route starting at the col of Maumahoge in the south, climbing Knocknahillion and then along a winding 2-kilometre rocky ridge to the top of Letterbreckaun, before descending via the sharp "v-shaped" col of Maam Turk (Irish: Mám Tuirc, meaning "pass of the boar"), from which the entire range bears its name.[6][8][9] Knocknahillion is also climbed as part of the Maamturks Challenge, a 25-kilometre 10–12 hour walk over the full Maumturks range (from Maam Cross to Leenaun), which is considered one of the "great classic ridge-walks of Ireland",[8] but of "extreme grade" due to the circa 7,600 feet of total ascent; however, because the peak of Knocknahillon is offset to the west of the core winding rocky ridge, it is not always summited during the challenge.