The Sanctuary of Demeter at Macchia delle Valli, in the territory of Vetralla, reopens to the public on Saturday 24 October 2026. The Soprintendenza Archeologia, Belle Arti e Paesaggio for the province of Viterbo and southern Etruria announced this on 20 October. It says the work behind the reopening has pushed the earliest evidence of activity at the site back to protohistory.

Map showing where Vetralla is
Vetralla, Province of Viterbo, Italy

What the Soprintendenza says it found

The Soprintendenza reports that research, conservation and public-access work at the sanctuary was carried out with funds from Italy's national recovery plan, the PNRR. Its announcement says the recent excavations produced new and significant data on one of the most important archaeological complexes in the area.

The main points of the announcement are these:

  • An earlier start. The recovered material has extended the span of use of the site back to protohistory. Il Giornale dell'Arte, reporting the announcement, says that until now use of the sanctuary was established from the 3rd century BC to the beginning of the 2nd century AD.
  • A clearer building history. The finds allow a more precise reconstruction of how the sanctuary's architecture developed in its late-Etruscan and Roman phases.
  • Continuity of cult. According to the Soprintendenza, the new evidence confirms the importance of the cult of Demeter and the sacred character of the place. It documents continuity of visits and devotion from the first protohistoric traces to the Roman era.
  • A quarry. The excavations went down to the natural bedrock and revealed traces of quarrying in sectors where none had been documented before.
  • Water and terraces. The team recovered the historic fountain (fontanile) and its associated structures, along with the system of terraces on the hillside. The Soprintendenza says these show long use of the site's natural resources, especially water, and a presence continuing into the modern era.

The results also helped refine the visitor route, which is meant to connect the archaeological remains with the surrounding landscape.

What "protohistory" does and doesn't tell us

The headline claim is also the vaguest one. La Brújula Verde explains protohistory as the stage before the Etruscans proper, when there was still no writing in the area, and says it usually covers the Bronze Age and Iron Age in Italy. The same outlet wrote that the announcement gives no dates and does not say which objects were found. That leaves open the question of what the protohistoric evidence consists of.

Earlier accounts of the shrine

La Brújula Verde adds background on how the site was found. It says the sanctuary came to light in 2006, after a report of illegal digging near Vetralla. An emergency excavation by the Soprintendenza, it says, found an almost complete shrine to Demeter beneath quarry rubble.

As La Brújula Verde describes it, the shrine is a small chamber wedged into a rock face. It says a terracotta statue of the goddess stood inside, and that votive deposits, objects left as offerings, came to light beneath a ritual terrace and against the cell.

The same outlet reports that Luigi Franciosini, a professor at Roma Tre University, places the site on the edge of what is left of the Ciminian Forest, which the Romans feared.

Reopening details

The Soprintendenza says the site will be presented and inaugurated on Saturday 24 October and refers readers to an attached flyer for details. Il Giornale dell'Arte and lextra.news both give the time as 15:30, with free entry and no booking required.

Sources

Carvajal, G. (2026) 'The Forest That Stopped Roman Legions Hid a Shrine to Demeter, and Archaeologists Just Discovered Signs of Use Long Before the Etruscans', La Brújula Verde, 20 October 2026, available at: https://www.labrujulaverde.com/en/2026/10/the-forest-that-stopped-roman-legions-hid-a-shrine-to-demeter-and-archaeologists-just-discovered-signs-of-use-long-before-the-etruscans/ (Accessed: 21 October 2026).

lextra.news (2026) 'Vetralla, nuove scoperte al Santuario di Demetra: il sito archeologico riapre al pubblico il 24 ottobre', lextra.news, 20 October 2026, available at: https://www.lextra.news/vetralla-santuario-demetra-macchia-delle-valli-riapertura-24-ottobre-2026/ (Accessed: 21 October 2026).

Mercuzio, R. (2026) 'Vetralla (Vt), il Santuario di Demetra è molto più antico di ciò che si credeva: risale alla protostoria', Il Giornale dell'Arte, 20 October 2026, available at: https://www.ilgiornaledellarte.com/Articolo/Vetralla-Vt-il-Santuario-di-Demetra-e-molto-piu-antico-di-cio-che-si-credeva-risale-alla-protostoria (Accessed: 21 October 2026).

Soprintendenza Archeologia, Belle Arti e Paesaggio per la provincia di Viterbo e per l'Etruria meridionale (2026) 'Vetralla (VT) – Nuove scoperte al Santuario di Demetra: Inaugurazione di un luogo sacro dell'Etruria', Ministero della Cultura, 20 October 2026, available at: https://sabapviterboetruria.cultura.gov.it/vetralla-vt-nuove-scoperte-al-santuario-di-demetra-inaugurazione-di-un-luogo-sacro-delletruria/ (Accessed: 21 October 2026).

Picture credits