Domaine des Marnes Blanches' greatest asset isn't necessarily the chalky limestone and fossil-rich soils on which they grow their grapes — rather, it's the passionate and talented winemakers/owners, husband-and-wife team Pauline and Géraud Fromont. They're Jura natives who farm about 10 hectares in the southern part of the region, the Sud Revermont, where they produce many cuvées from old vines of indigenous varieties. They focus on biodiversity, they work with solely native yeasts and often experiment with single-parcel or sans soufre bottlings.