Close to the city of Huesca, this place was named in honour of one of the most legendary characters of the Middle Ages, the valiant French knight, Roldán. It has some imposing rock walls from which you can sight magnificent countryside and it is in the north-western sector of the Sierra Natural Park and the Guara Canyons. Legend has it that when Roldán, at the head of the rearguard of the Carolingian Army, withdrew towards France, pursued from the south, he was ambushed at the San Miguel Crag. To escape from his persecutors, he spurred his horse to jump (a salto) over the gorge, reaching the crag on the opposite side. The hoof prints are embedded in the rock.

The Salto de Roldán is formed by two impressive ridged wall faces - the San Miguel Crag and the Amás Crag; they are both steep conglomerate formations with the Flumen River at the bottom.

The river eroded the synclines at different levels of the conglomerate deposits during the Tertiary period. All the synclines have varying degrees of hardness. Sometimes the rock fractures to form isolated synclines, as is the case of the Fraile Crag.

This type of geological environment, with its variety of air currents, is the favourite habitat of many birds of prey, in particular the Griffon vulture, that find refuge in the hollows of the rocks.

In these unique, particularly beautiful surroundings, with the Vadiello dam in the centre, you can appreciate the conglomerate rock formations, great isolated vertical ridged walls, known as the synclines. The ones in this place are the Ligüerri Synclines and they are dominated by the Mitra and Puro monoliths, as well as the Isarre Gorge with the San Chinés hermitage. Another of the symbolic crags in Vadiello is the “San Cosme Egg”. The list is long: the Potato, the Pepes, also known as the Aliana Synclines, Lazas, the Borón Crests, the San Jorge Peak, as well as the Escomentué, Diablo and Lazas gorges, and the Palomo Canal, where there a great many Griffon vultures.

The formations in these synclines are rounded and form an ideal rocky mass for climbing enthusiasts.

A unique spot, formed by the Guatizalema river, of great environmental interest, where the waters of La Pillera and Fuentespátula flow into those of the Abellada Gorge. The river bed is rocky with a lot of potholes and strange limestone formations.

The vegetation in these surroundings - larches, boxwood, yew trees, hazelnut trees, wild pines and oaks – forms an ideal habitat for a multitude of birds amongst which you will find the hoopoe, the green woodpecker, the common blackbird, the robin, the nightingale and the wryneck.

People swim here in the summer. It is also one of the best routes for climbing the Tozal de Guara, crossing the riverbed several times.

The access to the gorge is from Nocito, on foot, leaving your car and taking the track which leaves on the right before crossing the bridge over the Guatizalema river. At about 2 km turn off to the left, following the signs for Tozal de Guara and cross the river ford. The track enters the gorge of La Pillera after a few metres. This part of it ends in the Estañonero pool with its cold crystalline waters; this is where the water from the Abellada gorge on the left and La Pillera on the right, flow into each other, fed by the water coming from Fuentespátula and Fuendeguaril.