It forms the pass of Atxarte with the neighnouring Aitz Txiki and it's located in the valleys of Mendiola and Mañaria. Quarries have been created in both sides of the mountain, but now the Atxarte one is closed. Mañaria is the starting point of the Urkiola pass that separates Untxillaitz from Mugarra.
From Atxarte.(1h 30m) From the neighbourhood of Zelaieta in Abadiano the road goes to the Atxarte pass there the river is crossed and a path turns to the right and there is a steep ascension beside the Urresti prominence. At the top of Urresti there is a difficult rock climb that leads to the Elosua col route. At the end of the prominence, the crest is followed until the summit.
From Mañaria by Elosua.(2h) From the quarry at this side of the mountain, there is a path that leads to the col of Elosua, from where the summit is reached following the crest.