Dillon Vineyards is a small vineyard, located in the Yountville Appellation, south of the town of Yountville on the floor of the Napa Valley. This unique location has an exceptionally delicate micro climate for growing Chardonnay grapes.

During the growing season, the vineyard is cooled by the gentle breezes coming off the San Pablo Bay which gives this area a cooler temperature and higher humidity than other parts of the Napa Valley. The cooler temperature allows for an extended growing season and optimizes the Chardonnay's varietal character.