Dating back to ancient times, the Galeries souterraines de la balme Saint-Clair remains an enigma. These tunnels whisper secrets beneath Lyon.
The Galeries souterraines de la balme Saint-Clair are also known as the réseau des Fantasques. They form a vast network of underground passages beneath the Croix-Rousse. The tunnels extend from the Rhône to Rue Magneval. This location adds to their mystery.
Imagine a structure composed of a main gallery. This “vertebral column” stretches 156 meters. About 32 side galleries branch off it. These are each about 2 meters wide and 30 meters deep. Impressive indeed.
Rediscovery of the Galeries souterraines de la balme Saint-Clair occurred during the 20th century. It was during the construction of the Croix-Rousse tunnel. This construction damaged some of the galleries. Later, city archaeologists explored the site. They uncovered many surprises within the Galeries souterraines de la balme Saint-Clair.
They found minimal evidence of human activity. It suggested the tunnels were never used. In 1959, workers discovered five cubic meters of human bones. These bones later disappeared adding mystery.
No documents mention these strange structures in city archives. Theories about the Galeries souterraines de la balme Saint-Clair abound.
Some believe King Charles IX built them in the Middle Ages. It was supposedly to supply the city during sieges. Gilles Buna suggests secret construction hidden from Lyon’s residents. This could explain the lack of records about the Galeries souterraines de la balme Saint-Clair.
Walid Nazim proposes a different idea. He thinks the network dates to the 8th century. According to him, the Knights Templar hid treasure here. At that time, the Croix-Rousse belonged to the head of the Temple Order.
Recent scientific analysis provides another perspective on the Galeries souterraines de la balme Saint-Clair. Carbon-14 dating places construction between 400 BC and 0 AD. This suggests the tunnels are much older than previously thought.
Were the Galeries souterraines de la balme Saint-Clair storage for Roman currency workshops? Were they linked to surface structures such as the Sanctuary of the Three Gauls? The possibilities ignite the imagination.
The Galeries souterraines de la balme Saint-Clair consist of approximately 2 kilometers of passageways. The main gallery lies 25 meters underground. Sixteen side galleries branch from it. A second gallery lies 8 meters below the main one.
These tunnels total 1.4 kilometers in length. There are 960 meters for side galleries. The main galleries account for 312 meters. Sixteen wells access these galleries. Each tunnel stands 2.2 meters high and 1.9 meters wide.
The public has shown great interest in the Galeries souterraines de la balme Saint-Clair. Media reports and conferences discuss them. The purpose of these tunnels remains unknown. Two theories stand out.
Walid Nazim believes the tunnels stored the Templar treasure. This network hid jewels brought from the Holy Land. Guillaume de Beaujeu controlled much of the land above the labyrinth. Red stones from his lands built the walls.
Georges Combe suggests the tunnels were Roman. They may have linked to the Sanctuary of the Three Gauls. Archaeological studies confirm the Gallo-Roman era construction. They also reveal the Galeries souterraines de la balme Saint-Clair were never finished.
Today access to the Galeries souterraines de la balme Saint-Clair is prohibited. The city closed entrances due to safety concerns. No public tours exist.
The mystery of the Galeries souterraines de la balme Saint-Clair endures. They represent a significant part of Lyon’s heritage. Though their purpose is debated their existence fascinates.