At 23 km is Pineda de la Sierra, declared a historic-artistic complex with mountain-style architecture houses and a romanesque church with portico. Until recently, the greenway stopped here, and trail users had to go by the road for a while, as the trail had been occupied by an individual who claimed possession. In 2009, the Supreme Court found in favour of the Pineda de la Sierra town hall in their dispute with the landholder. The route continues parallel to the River Arlanzón, and sandwiched between the mounts Mencilla and San Millán.