Pyhäjärven Callio

Callio is a Finnish innovation platform transforming the former Pyhäsalmi mine—Europe’s deepest known base metal mine—into a multidisciplinary underground ecosystem for research, energy, and digital infrastructure. Located in Pyhäjärvi, North Ostrobothnia, Callio repurposes the 1,445-meter-deep mine and surrounding land into a hub for renewable energy projects, data centers, battery storage, pumped hydro, and underground R&D.

Callio Data Center Campus

Details on Pyhäjärven Callio, a data center industry player headquartered in Pyhäsalmi, Finland. Find data center locations, services, networks and much more.

Pyhäjärven Callio

Pyhäjärven Callio

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