In the northeastern corner of Rutherfod lies Quintessa. The estate is one of the most scenic and geographically unique properties of the Napa Valley. When Agustin and Valeria Huneeus began to develop the property as a vineyard in 1990, they availed themselves of the most advanced viticultural research of the time. Valeria Huneeus, in keeping with her vision as steward of this land, has guided Quintessa's evolution from sustainable farming in 1990 to organic farming in 1995 and to biodynamic farming in 2000. The winery at Quintessa was built into one of the property's many hills. Its eco-sensitive design incorporates gravity flow, French oak and stainless steel fermenters specifically tailored to the diverse blocks of the Quintessa vineyard, and naturally cold caves.