The soils of the Conegliano Valdobbiadene area are ancient. Part of the hills were formed by glacial movement of the Dolomites and have a deep substrate of iron-rich pebbles, gravel and clay. In the areas where the action of the glaciers was not affective the soils are composed of marls and sandstone. The Glera grape variety has found its place in this region, and has been thriving on the hills for over three centuries.