Grotte di Sant'Angelo

Beneath the rock of the old town, the Grotte di Sant'Angelo extend through about 3,650 metres of limestone and dolomite passage. Stalactites and stalagmites line the system, while archaeological deposits record roughly eight thousand years of human presence.

Why it matters

The Grotte di Sant'Angelo are Cassano all'Ionio's principal natural-underground site, and their archaeological record reaches far beyond the Greek and Roman settlements on the plain. Openings at about 435 metres above sea level lead into a system that drops some 100 metres through limestone and dolomite, with a total surveyed development of about 3,650 metres. What separates these caves from a simple geological spectacle is their human record: deposits inside attest to people using the cavities across roughly the last eight millennia.

What to notice

Flowstone curtains and columns formed along the cave's main passages, among recurrent stacks of stalactites and stalagmites. Limestone and dolomite bands reveal changes in the underlying rock, while the caves' vertical descent reflects the system's natural structure.

Context and history

The caves join geology and archaeology: deposits within have been described as evidence of human presence across roughly eight thousand years. Their underground record belongs to a town whose rock also carries a castle and cathedral above.