In Burgundy, a "ouvrée" is an ancient unit of measurement used to describe the surface area of vineyards. Traditionally, a ouvrée was the area that one man could plough in a day. However, its exact size can vary depending on the wine-growing region of Burgundy.
In general, one ouvrée is equivalent to around 0.285 hectares. Cette unité de mesure est surtout utilisée dans le contexte viticole pour estimer la taille des domaines et des parcelles de vignes.