Circuit de Charade

The Circuit de Charade, also known as Circuit Louis Rosier and Circuit Clermont-Ferrand, is a motorsport race track in Saint-Genès-Champanelle near Clermont-Ferrand in the Puy-de-Dôme department in Auvergne in central France. The circuit, built around the base of an extinct volcano, was known for its challenging layout which favored the most skillful drivers and motorcyclists. It hosted the French Grand Prix four times and the French motorcycle Grand Prix ten times.

Source: Wikipedia