→ 1.70 → Pieros → 2.40km → Valtuille de Arriba
The Iglesia de San Martín de Tours still bears the inscription indicating that it was commissioned by the bishop of Astorga. San Martín of Tours was, prior to the popularization of Santiago (and his battle at Clavijo), the patron saint of most of the peninsula.
Shortly after leaving Pieros the camino splits near a set of power lines. The detour through Valtuille, favored for its safety and scenery, is to the right. The road route continues straight for several kilometers before turning off onto a dirt track. This track will rejoin the Valtuille route.