Boca del Infierno (Mouth of Hell) is a defiant narrow road located in the province of Huesca, Aragon, in northern Spain. It’s one of the most scenic canyon roads of Spain.
Set high in the Pyrenees, near the border to Navarre, the road running through Boca del Infierno is one of the world's top drives. The road is totally paved running through an incredible landscape on a canyon carved by the Aragón river. You can see vertical walls over 200 meters high. The road is unnamed but usually known as carretera Selva de Oza.
Tucked away in Hecho Valley, the road follows an old Roman road through the ravine that the river has drilled into the rock. It’s a spectacular gorge with white waters and beautiful passages. Some parts are mostly wide enough for one car. So proceed cautiously and hope no other vehicles come from the other direction. Not recommended if you don't know how to reverse.
Attention to the ice cascades that form on the road. The drive is 15km (9.32 miles) long, running south-north from Echo to Refugio De La Cantina. It´s one of the most visited canyons in the province for motorbikers, cyclists and hikers. Risk of rock slides. Along the way you’ll have to drive through several primitive stone tunnels dug into the walls.
Road suggested by: jorge manuel gómez sánchez