The road continues west through increasingly undulating countryside. In the "Forêt de Multonne" "Mont Souprat" rises to 385 m. At Pré-en-Pail the RD176 heads northwest to the coast and Avranches. The road heads southwest below hills such as "Mont du Saule" and "Bois de Buleu" both 327 m high. The road next enters Mayenne. The RN162 heads south from here to Laval. The road next reaches Ernée crossing the "Forêt de Mayenne" (215 m). The road crosses open country to Fougères, which the RN12 passes to the southwest. The RN12 then joins the A84 autoroute; the old road is now the RD812. It passes the village of Saint-Aubin-du-Cormier then the "Forêt de Liffré" and then "Forêt de Rennes". The road then enters the city of Rennes.