Archaeologists in the Hauts-de-France region have uncovered the foundations of a Roman military signal station dating to the 1st century CE. Situated on a high cliff overlooking the English Channel, the site was part of an early imperial coastal defense and communication network used to monitor maritime traffic and coordinate with the fleet in Britain. The excavation revealed a square stone tower surrounded by a timber-reinforced ditch.
Inside the station, researchers found several bronze signal mirrors and the remains of charred wood, indicating the use of fire beacons for night-time signaling. The discovery provides the first physical evidence of a permanent Roman signaling infrastructure on the Gallic coast during the reign of Claudius. Artifacts such as legionary belt buckles and ceramic storage jars suggest the tower was manned by a rotating detachment of soldiers from nearby inland forts.