EntityQ3881306· pop 10· linked from 7 articlesOiartzunSign in to saveriver in SpainConnectionsSpainCountryAtlantic OceanEntityInternational Standard Book NumberEntityIberian PeninsulaEntityPyreneesEntityBay of BiscayEntityBasque CountryEntityGipuzkoaEntityriver mouthEntityErrenteriaEntityPasaiaEntityOiartzunEntityCantabrian SeaEntityAiako harriaEntityCategoriesLandforms of GipuzkoaRivers of SpainRivers of the Basque Country (autonomous community)