This base map, produced by the Dépôt de la Guerre, is one of the base maps used by the Commission de Topographie des Gaules to produce all its maps. It shows the location of Gallic tribes.

The different base maps (more examples are shown separately) were used together depending on the needs of the final map, for example, in the Carte de la Gaule sous le Proconsulat de César, produced in 1861.