Puerto de Piedrasluengas Mountain Pass Road in Spain

The C-7 road is situated in northern Spain, within the autonomous community of Cantabria. It traverses mountainous terrain, reaching elevations between 1,103 m (3,619 ft) and 1,365 m (4,478 ft). The road crosses the Puerto de Piedrasluengas mountain pass, which itself is located at approximately 1,329 m (4,360 ft) to 1,355 m (4,446 ft) elevation. The route runs adjacent to the Río Pisuerga for about 13% of its length, a significant river that eventually flows into the Río Duero. The road ends near the village of San Salvador de Cantamuda, a small settlement that serves as a reference point for the route's terminus. This area is known for its natural beauty and offers viewpoints that attract visitors. An interactive map showing the road can be found at the end of the article.

The C-7 road extends approximately 15.7 kilometers (9.8 miles) and is characterized by a predominantly asphalt surface of high quality, rated 4.6 out of 5. The road maintains two lanes throughout its length, with the majority of the route being wide (about 91%) and a small portion classified as middle width (7%). Narrow sections are minimal, comprising about 1% of the road. The road's curvature is moderate, rated at 1.11 on a scale where 3 indicates extreme twistiness, making it suitable for riders who prefer a balanced combination of straight stretches and gentle curves.

Speed limits vary along the route, with maximum allowed speeds of 60 km/h (37 mph), 50 km/h (31 mph), and 40 km/h (25 mph) depending on specific sections. Approximately 16.3% of the road passes through inhabited areas, which requires riders to be attentive to local traffic conditions. The road's elevation profile includes two points at the Puerto de Piedrasluengas mountain pass, with elevations of 1,329 m (4,360 ft) and 1,355 m (4,446 ft), offering riders a mountain pass experience with scenic viewpoints.

The route runs alongside the Río Pisuerga, a notable river in the region with a total length of approximately 710 kilometers (441 miles). The river's adjacency to the road enhances the natural ambiance of the ride. Additionally, the road provides access to viewpoints that allow riders to appreciate the surrounding mountainous landscape. These viewpoints serve as ideal stops for rest and photography, contributing to the overall appeal of the route.

For more information about the river, see Río Pisuerga.

There is no evidence of seasonal or event-related closures affecting the C-7 road or the Puerto de Piedrasluengas pass for motorcycles. However, as with many mountain pass roads, winter conditions may impact accessibility due to snow or ice, so riders should verify local conditions before planning a trip.

Currently, there are no tolls or entrance fees associated with this road. Toll conditions may change in the future, so riders are advised to consult official Spanish road authorities for the latest information. More details on road tolls and fees in Spain can be found at the Dirección General de Tráfico website.