A member of the Ardines limestone massif, the Tito Bustillo cave consists of a large gallery of 750 meters in length, facing East-West, to which numerous galleries and collateral spaces open.
It was discovered in 1968, with an exceptional set of Paleolithic representations being located inside, highlighting the Great Panel, in which the representations of seven horses, four reindeer and various painted and engraved signs appear superimposed, all on a red ocher background. Other representations appear in the immediate vicinity.
Throughout the cave there are spaces that have decorated panels, in the case of the so-called Camarín de las vulvas.
The artistic manifestations of Tito Bustillo are ascribed to the Magdalenian, with possible Gravettian antecedents.
Since 2008 this cave has been on the UNESCO World Heritage List. In its surroundings a modern Palaeolithic cave art center is located, dedicated to the interpretation and explanation of the richness of the Palaeolithic art of Tito Bustillo and, in general, of the set of existing cavities in Asturias with manifestations of the first art of humanity.