The Jouffreau family were instrumental in encouraging fellow growers to plant the correct clone after the devastation of phylloxera in 1885. The Clos de Gamot is a 15 hectare vineyard, on clay-limestone-silica terroir, with pebbles and flint, located on the second and third terraces of the Lot which come in part from the Massif Central (galets, quartz, gravel,…) and also from the alluvials of the Lot. A strip of red clay runs through the Clos de Gamot vineyard, giving exceptional properties to this terroir. Their main vineyard has vines from 40 to 70 years old and produces very limited yields of about 40 hl/ha. The oldest part of their vineyard planted in 1885 has several vines still in production. These century-old vines have very low yields of 15 to 20 hl/ha.