🔬 Discovery

Cave of El Castillo

Cueva de El Castillo

Date
1903 · confidence high
Place
Puente Viesgo, Cantabria, Spain
Credited to
Hermilio Alcalde del Río
Field
Cosmos & Earth

What was discovered

Spanish archaeologist Hermilio Alcalde del Río discovered the Cave of El Castillo in 1903, in Puente Viesgo (Cantabria), with a sequence of rock art spanning from the Aurignacian to the Bronze Age, including some of the oldest red discs known in Europe.

What it led to

  • Chronology of Cantabrian cave art
  • Uranium-thorium dating of Palaeolithic paintings
  • Protection of the Monte Castillo cave complex

Links

Sources✓ verified 2026-09-28