What is a Côte de Gascogne wine?

Côte de Gascogne wines are French Protected Geographical Indication (PGI) tasting wines, an appellation covering a terroir in southwestern France that includes the Armagnac AOC (Appellation d’Origine Contrôlée). The authorized area of production extends over the department of Gers, the east of Landes and the south of Lot-et-Garonne.
To produce Côtes de Gascogne wines, about forty grape varieties are authorized. The winegrowers of Côtes de Gascogne produce a large majority of dry white wines, a specificity which finds its origins in the wine tradition of the region.