The terroir across the Côtes de Gascogne area is transitional, with the maritime effect of the Atlantic ocean giving way to a more continental climate in the east of Gers. In the east, summers are warmer and drier, and the clay limestone soils retain water more effectively. Nearer the coast, loose, sandy soils with good drainage and high rainfall characterize the vineyards. The wines of Gascogny provide reliable, fresh whites from a combination of Ugni Blanc, Colombard, Sauvignon Blanc and Chardonnay, and assertive, mineral rich reds from a base of Tannat.