Ancient Mulino San Giovanni
A working rice mill built in 1465 alongside the Roggia Camera canal, this monument preserves five centuries of hydraulic engineering and rice-processing history in the Vercelli plains.
At a glance
The Ancient Mulino San Giovanni stands as a testament to the sophisticated water-management systems that transformed Eastern Piedmont from marshland into one of Europe’s premier rice-growing regions. Originally called da Po for its proximity to the river, the mill operated continuously for nearly 450 years, driven by water power channeled through the Roggia Camera canal. Today it functions as a museum operated by the Gardano family, preserving both machinery and the engineering knowledge of its builders.
History
The mill’s origins trace to the broader reclamation effort that began in the 13th century from the Cistercian abbey at Lucedio. By the mid-15th century, the canal network linking the Po and its tributaries was under construction on the initiative of Marquis Guglielmo VIII del Monferrato. The San Giovanni mill itself was built in 1465, contemporary with the Roggia Camera canal project.
The structure endured French and Spanish raids, suffering devastation that prompted its 1617 reconstruction as Mulino Nuovo. By 1699 it was recorded in land registries as a “piste”—a rice-husking plant powered mechanically by a paddle wheel. The 19th century brought enlargement: a second building connected by a bridge, and replacement of the wheel with a turbine, a cutting-edge innovation that still powers the mill. The Tournon family acquired ownership in the late 1800s. Decommissioned in 1911, some machinery was transferred to a newer facility until 1992. Since 1956, the Gardano family—five generations of millers—has owned and restored the complex as a museum.
What you see
The mill comprises two stone buildings connected by a bridge spanning the supply canal. The original structure dates to 1465; the second building was added during 19th-century expansion. The most significant feature is the hydraulic system: water from the Dora Baltea flows through the Roggia Camera canal to turn a turbine that still drives the rice-processing machinery. Original mechanical equipment remains visible, alongside later technological upgrades that document evolving milling practices across five centuries.
Cultural significance
The San Giovanni mill exemplifies the engineering prowess behind Piedmont’s transformation into an agricultural powerhouse. The canal system itself drew admiration from 18th-century experts—English agronomist Arthur Young (1741–1820) documented its magnificence, and his handwritten notes are preserved in the museum. The mill’s survival and restoration offer rare insight into both the hydraulic infrastructure and the daily operations of rice processing in pre-industrial and early industrial Europe. It stands within a landscape shaped partly by Leonardo da Vinci’s hydrological studies in the neighboring Duchy of Milan, itself a testament to Renaissance engineering ambition across the region.
Key facts
- Address: Via Po 9, 13040 Fontanetto Po, Vercelli
- Built: 1465
- Coordinates: 45.1886988258367, 8.187689781188965
- Phone: +39 0161 840120
- Official website: http://www.comune.fontanettopo.vc.it/archivio/pagine/Mulino_Riseria_San_Giovanni.asp
Practical information
The mill is open to the public by request. Admission is €3 per person. Visits can be booked via the museum website or by telephone. The site is included in the 3 + 1 Patrimoni tour organized by Monferrato Hospitality & HandMade.
Getting there
Fontanetto Po is located in the province of Vercelli in Piedmont. The mill is situated at Via Po 9. For specific directions and travel information, contact the municipality office or call the mill directly.
Sources & resources
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