→ 12.30 → Montamarta → 12.50km → Fontanillas de Castro
Overlooking the village from the other side of the reservoir is the Ermita de la Virgen del Castillo. The municipal albergue is located along the N-630 before the camino gets to the village, and the Hostal Asturiano is just a bit further south of it.
The way from Montamarta crosses part of the reservoir here, which may be impassible when the water is high. When that is the case simply take the N-630 over the water.
In 4.5km the camino crosses over the A-66 (see note below regarding optional road route). It then crosses a few rivers and returns to cross back over the A-66 once again. From here it follows a straight path directly to Fontanillas. Along the way is a signed detour to visit the ruins of the Castillo de Castrotorafe, a former stronghold of the Order of Santiago.