The terroirs of Côte-Rôtie and Condrieu resulted from the breakup of the Massif Central which gave rise to the Rhône plain.
Today, the soils are comprised of granite, sandy silica and mica schist. This bedrock plays a key role in regulating the water supply to the vine, with terraces established on a particularly well-draining soil due to the presence of many vertical microfaults.