The Jongieux vineyards are very steep, southwest- facing slopes created by ancient glaciers. The altitude is between 400 and 500 meters, yet the microclimate is very warm. The ideal limestone dominant slopes of the Jongieux appellation allow the grapes to ripen more fully than in any other Savoie region, due to 2-3 hours more sun daily. As a result, the wines are not only fuller, but also more balanced and fresher, because there is far less need for chaptalization.