Nasium, Archaeological site in Naix-aux-Forges, France.

Nasium is a Roman city site in the Meuse, not Champagne, spread over 65 hectares on both banks of the Ornain at its confluence with the Barboure, across Naix-aux-Forges and Saint-Amand-sur-Ornain. A fluted white stone column on a stepped base bears the name NASIVM on its plinth. Sculptures found here were carved from local Savonnières limestone.

The settlement began as a Celtic fortified town and later became the administrative center of a large Roman district. It prospered for centuries until the decline of Roman authority in the region.

The ruins show how Celtic and Roman communities lived side by side in this region, building homes, workshops, and markets that reflect both traditions. Visitors can see through the foundations and objects how daily life evolved during this period of contact and change.

The site is open to visit and walk through, with information panels along the paths explaining the ancient city's layout. Many discoveries are displayed in the museum in the nearby town of Bar-le-Duc, which helps visitors better understand what life was like in this place.

The column standing on the lawn carries only the word NASIVM, echoing a wish expressed by Ranxin in his Voyage historique et pittoresque sur les ruines de Nasium: that a single inscribed column be raised on the road crossing the Roman way to keep the memory of the city alive. The name itself shifted over the centuries, from Nasion in Ptolemy's Geography to Naix in the mid-18th century.