Beaunay is one of the 319 villages of the Champagne appellation, located in the Coteaux du Petit Morin area, in the south-west of Champagne. It lies 12 km from Vertus, 22 km from Épernay and 50 km from Reims.

The village covers a total vineyard area of 41 hectares. Mostly planted with Meunier, Chardonnay is increasingly important thanks to its remarkable ability to adapt to the various clays of the terroir.

The geology of Beaunay is extremely diverse, although clay is present throughout the area. Soil depth varies considerably, ranging from just 40 centimeters before reaching the chalk to as much as 2.5 meters.

The dominant limestone in Beaunay is Micraster limestone, dating from the Campanian, the sixth stage of the Late Cretaceous. In certain geological layers, we regularly observe the presence of intact yet very fragile Micraster glyphus. Micraster was a genus of sea urchins that lived during the Cretaceous period.