Dénomination géographique complémentaire, or DGCs, are known in English as Complementary Geographical Denominations. They are smaller geographical regions that are permitted to add their names to labels of wines from the Regional Appellations of Bourgogne or Macon.
A geographical denomination can encompass either a region like in Bourgogne Côte Chalonnaise, a village like in Mâcon Verzé or even the name of a Climat like in Bourgogne La chapelle Notre Dame. They are very affordable wines.