Red Ereño is widely prized as an ornamental and construction stone for its intense red micritic matrix, contrasting with the white rudist fossil shells it contains. Quarried since Roman times (first century) in the localities of Ereño and Gautegiz Arteaga, Red Ereño is a recognised limestone and has been widely used in architecture ever since. It was utilised extensively in the Basque Country and is characteristic of the urban landscape of several of the region’s most important cities, including Bilbao and Gernika (Guernica). It has also been used in many monumental and other buildings throughout the Iberian Peninsula. Red Ereño limestone has also been exported to the Americas and Italy, the most significant example being its use in the flooring of St Peter’s Basilica in the Vatican. This paper summarises the main features of Red Ereño as a candidate for consideration as a Global Heritage Stone Resource (GHSR). This recognition will be important for future research and restoration works of existing heritage buildings.

红色埃雷尼奥（Ereño）因其强烈的红色微影基质而被广泛用作观赏和建筑用石材，与其中所含的白色鲁迪斯化石壳形成鲜明对比。自从罗马时代（一世纪）在Ereño和Gautegiz Arteaga地区采石以来，RedEreño是公认的石灰石，自那时以来已广泛用于建筑。它在巴斯克地区得到了广泛的利用，它是该地区几个重要城市的城市景观的特征，其中包括毕尔巴鄂和格尼卡（Guernica）。它也已在伊比利亚半岛的许多纪念建筑物和其他建筑物中使用。红色埃雷尼奥石灰石也已出口到美洲和意大利，最重要的例子是其在梵蒂冈圣彼得大教堂的地板上的使用。本文总结了红色埃雷尼奥（RedEreño）作为全球遗产石材资源（GHSR）的候选者的主要特征。这种认可对于将来对现有文物建筑的研究和修复工作非常重要。