Spectacular short mountain road in Spain, located in the Liebana zone, between the Autonomous Communities of Asturias and Cantabria.
The road, going through the La Peña path, starts in the municipality of Urdon, at an elevation of 75m above the sea level, in the point of the junction with the N-621 road (which follows the river Urdon inside the gorges of Hermida), and finishes in the town of Tresviso, at an elevation of 907m above the sea level, in the middle of the Picos de Europa mountain range.
The unpaved sections of the road can be impassable when wet. After rain, sections of road can become decidedly hazardous when fast-flowing creek crossings and slippery mud can cause road closures. As always, check road conditions before departing. In any case, driving 4WD is recommended due to uneven surface. The road, called officially PR-PNPE-30, was built during the XIX century, to bring materials to the mine of Andara, by a society called 'La Providencia'. After some meters, the tortuous winding path arrives to the hydroelectric power station called Central Hidroeléctica de Electra de Viesgo S.A., built in the year 1912, and rebuilt in 1952 after a fire. During and after a storm the road may be impassable, even with a four-wheel-drive vehicle and can easily get muddy if it rains making it challenging to get through.
Make sure you get your vehicle and yourself well-prepared before driving this road. The road bad conditions, with extremely large pot holes could potentially pop a tire, crack a rim, or screw up your cars allignment. After the hydroelectric power station, the most famous zones of this path are called Ahileras, Entrelospuentes, las Canalizas de Grezo, canal de Cerrosa, la Vargona, Ciabedo, el balcón de Pilatos (a point with a vertical fall of more than 600m with an indredible view of the river Urdón), Cotero Cruzand los Invernales de Prias,before reaching the town of Tresviso. Never underestimate this track!
Menacing terrain with numerous steep, rocky climbs. Large, sharp rocks require tight maneuvering, increasing the likelihood of tire damage. High clearance, skid plates and differential lockers required. No stock vehicles. The road was used by soldiers during the Spanish Civil War. A complex network of poorly defined roads makes route-finding very difficult, even following a GPS tracklog. Carry plenty of water. Never drive this trail alone.
The road, with with an average slope of 13,8% is stoned, with never ending hairpins and curves.