• Geography • Lirac, "le Cru très rive droite" • Terroirs & Geology • Grapes and terroirs, in harmony • The major grapes for the reds and rosés • The main grapes for the white wines

Terroirs et geology.

In geological terms, the AOC has three very distinctive faces :

• On the boundaries, the vines were planted on limestone massifs where a series of erosions have deposited on the surface a thin layer of red clay and gravel.

• At the centre, the vineyard is formed of age-old alluvial terraces laid by the Rhône, consisting of quartz pebbles and red clay, which all lie on a sand bed.
  

• The slopes of these terraces reveal sands mixed with small pebbles, which derive from successive landslides.