Grottes de Las Fons et du Moulin

The Grottes de Las Fons et du Moulin are a pair of adjoining caves in the commune of Bize-Minervois, in the Aude department, right in the heart of the Minervois region. The site matters for two very different reasons: it was the scene of one of France's earliest important prehistoric discoveries, and today it serves as a protected refuge for rare bat species.

Where exactly are the caves located?

The caves lie within the territory of Bize-Minervois, at a spot locally known as Travers de la Verdeyre. The two caves sit next to each other and have long been treated as a single site, which is why they share both a name and a legal protection status. The land belongs to the municipality of Bize-Minervois.

Why do these caves matter archaeologically?

In 1827, the researcher Paul Tournal discovered bone remains inside the Las Fons cave that were, at the time, considered among the oldest known traces of human presence in this part of Europe. The find was significant for the emerging science of prehistory: the cave showed evidence of successive occupation, first by Neanderthals and later by Cro-Magnon people. Because of the value of this archaeological deposit, both caves — Las Fons and du Moulin — were listed as historic monuments by decree on 24 August 1931.

Can visitors go inside the caves?

No. Since 1996, under a European regulation issued on 11 March concerning bat conservation, public access to the Las Fons and du Moulin caves has been forbidden. The reason is the presence of a colony of several bat species, including Mehely's horseshoe bat — a species believed extinct in France since 1963 until it was rediscovered in this very cave in 1980. Because the colony is highly sensitive to disturbance, the site remains closed and strictly protected.

What can travelers do in the area instead?

While the caves themselves are off-limits, Bize-Minervois sits in a scenic corner of the Minervois, known for its vineyards, limestone gorges, and the Cesse river, which carves distinctive karst formations near the village. It makes a worthwhile base for exploring the wider region, even though the caves' interior is reserved strictly for bats and researchers.

FAQ

Are the Grottes de Las Fons et du Moulin open to visitors? No — access has been prohibited since 1996 to protect the bat colony living inside.

Who made the key discovery at the Las Fons cave, and when? Paul Tournal, in 1827, found bone remains proving human presence there in prehistoric times.

Which early human groups occupied the site? The caves were occupied successively by Neanderthals and later by Cro-Magnon people.

Which bat species is specifically protected here? Mehely's horseshoe bat, thought extinct in France since 1963 and rediscovered in this cave in 1980.

When were the caves listed as historic monuments? On 24 August 1931, by a classification decree recognizing the value of their archaeological deposit.