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Where was the ancient Roman city of Pompeii located?

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Ruins of ancient Pompeii with stone columns and walls in the foreground, and Mount Vesuvius rising in the background under a partly cloudy sky. — Pompeii Mount Vesuvius rising up over the ruins of the ancient Roman city Pompeii.

The ancient Roman city of Pompeii was located in the Campania region of Italy, situated approximately 14 miles (23 km) southeast of Naples.12

The city was positioned at the southeastern base of Mount Vesuvius and was built upon a spur created by a prehistoric lava flow, located just north of the mouth of the Sarnus (modern Sarno) River.12