Wines have been produced in the region for over 2,000 years. In the region extending from the Rhône valley to the Cévennes and the Ardèche mountains - both foothills of the Massif Central - vines were cultivated by the Helvians, an ancient Gallic tribe. Pliny the Elder reported about a vine in Helvie that flowers in a day, which protects it from accidents; the region would wait however, until the Middle Ages before the production was well established and the wine became well known. With the planting of the traditional Rhône valley varieties of Grenache noir, Syrah, Grenache blanc and Marsanne in the early second half of the 20th century, cooperative wineries were formed to increase production to a commercial scale. The Côtes du Vivarais wines are produced on a total of 554 hectares by 149 concerns which include 138 growers, 22 small private wineries, and the 11 cooperative wineries which cater for about 90% of the production.