Santimamiñe cave, Kortezubi, Biscay, Basque Country, Spain, is one of the most important archaeological sites of the Basque Country, including a nearly complete sequence from the Middle Paleolithic to the Iron Age.

[1] Its complete sequence includes the following cultures: Plus unclassified remains of the Neolithic, Chalcolithic, Bronze and Iron ages.

It is best known for its mural paintings of the Magdalenian period, depicting bisons, horses, goats and deer.

[2] Its excellent location over the Urdaibai estuary was probably most important in its continued habitation, first by Neanderthals and later by Homo sapiens.

[2] Between 1982 and 1985, local artist Agustín Ibarrola painted on the trees of the nearby Oma forest.