History of mining areas
In Mutiloa the iron ore, extracted in Caminza, Ollargain, Gezurmuño or Aizpuru was, since medieval times, the main supplier of the active ferrerías of the upper basins of the valleys of the Urola and Oria River. At the end of the 19th century The Mining Company of Mutiloa S.A imposed a more organized and systematic exploitation. To achieve this, it built up the necessary infrastructure to meet the requirements of the new production system: the mining railway that travelled the border from the vicinity of the Barnaola dwelling to the Ormaiztegi station, the inclined planes, the mineral washers and the decantation rafts… that together with the school, the canteens and the office occupied and substantially altered the slopes of the Ergoena neighborhood.