One of the most beautiful circuits. After a difficult ascent and a delicate descent, GR76 through the forest of Brou, single leading to the Guerin hut, and orientation table at the highest point. Nice descent of the Chaudures, which continues by the clear ridge line overlooking St Clément sous Valsonne. Tip: stop to enjoy the view revealing the beginning of the route in the Brou forest and spreading out to the Matagrin Tower, the highest point of the Monts de Tarare.