In 1979 R. Thornton Boswell founded Chateau Boswell and under the direction of André Tchelistcheff began producing Napa Valley Cabernet Sauvignon. In 1997 Susan and RT Boswell planted the estate hillside vineyard in virgin soils that continue to be maintained organically. The Chateau Boswell caves, 65 feet below the estate hillside vineyard, were designed by Susan to green building specifications with the desire to continue to be responsible stewards of the land, reducing the impact upon the environment through green business practices which reduce energy and water use. As the first certified Napa Green Winery, Chateau Boswell continues to preserve and protect the Napa Valley through their practices and through their active participation in support of sustainable initiatives.