In 1991, just two years after Olivier arrived in Krug, a Clos surrounded by a protective wall since 1766 was discovered in Ambonnay, Krug's favorite village and the greatest source of Pinot Noir. The small 0.68 hectare site was purchased in 1994 and the first vintage was produced in 1995. Kept an absolute secret until its release in 2007, Olivier revealed: "We even kept it a secret from Moet for a few years!" Clos d'Ambonnay is an extremely rare and exclusive champagne produced only in the best vintages. Only 4,743 bottles and 240 magnums of Clos d'Ambonnay were produced in 2002, each individually numbered.
