In 1982 Sir Peter Michael established the Peter Michael Winery on one square mile of rocky volcanic ridges of the western face of Mount St. Helena in Sonoma County, California. Winemaking at Peter Michael Winery has always been modeled on the philsophy and approach of the French tradition with important modern influences in technique. Three simple principles govern the approach at Peter Michael Winery: One, the vineyard and terroir are the most important feature of any wine. Two, the wines strive for elegance over power. Three, all decisions regarding the development of the estate are made in the context of "a hundred-year commitment." Only an extremely limited quantity of wines are produced in a given vintage.