In Champagne pottery production goes back to the Augustan period, and mainly involves Gallo-Belgic pottery manufactured in Reims and the Vesle valley. This quality production is widely distributed, as far as Brittany. It is replaced by production of dark rough « rugueuse sombre » pottery in Reims and in the North of the Aube ; production in Reims stops at the end of the 2nd century, and a century later in the Aube. In the Bas Empire only one site is known in Châtillon-sur-Marne ; it produces a kind of terra nigra. The production sites for cracked bluish « craquelée bleutée » pottery, which becomes omnipresent in settlements and cemeteries, remain unknown. Production sites are to some extent dispersed, as this was the best way to supply consumer sites, but there are also marked concentrations. The latter result from the proximity of cities or land and river transport routes.