Barranco de la Hoz: the red canyon of the Gallo River

A canyon changing colour with the light

The first striking impression on entering the gorge is its colour. The cliff faces are formed of reddish sandstones and conglomerates sculpted by erosion into spires, towers, and ledges. The Gallo River flows along the floor among black poplars and willows, accompanied by the road, unveiling the scenery bend by bend.

Distinctive formations bear traditional names: El Huso (The Spindle), a slender needle; La Rueca (The Distaff), a mass opposite the sanctuary; and La Cobertera, a slab projecting daringly over the hermitage courtyard.

An open book of geology

The cliff ramparts display exceptional rock strata recording Earth’s climate roughly 250 million years ago during the transition into the Triassic period. Consequently, Barranco de la Hoz is listed among Spain’s Geosites (geological sites of global significance) and forms a cornerstone of the Molina-Alto Tajo Geopark.

Cliffside life

The canyon runs roughly east to west, resulting in contrasting solar exposure between opposing walls. This divergence, paired with river moisture, multiplies microhabitats. Cliff-nesting raptors circle overhead, and slopes harbor one of the final populations of Delphinium fissum, a critically endangered larkspur.

The sanctuary

Midway through the canyon, nestled beneath overhanging rock, stands the sanctuary of Virgen de la Hoz, with its guesthouse built into the cliff and a small courtyard. It serves as the spiritual heart of the canyon and trailhead for walks.

Further exploration

• MTB Route 5 of the Natural Park traverses the canyon, linking it to Puente de San Pedro and Montesinos hermitage.
• Georuta 5 links the gorge with the geological folds of Cuevas Labradas.
• Recreation areas along the Gallo offer cool riverside shade.

Planning your visit

Devote part of your day to the canyon floor or expand your excursion with the cliff-top viewpoint. Road touring carries very different physical demands than the uphill walking trail.

Before travelling

Park in designated spots before walking. The climb to the viewpoint involves steps; during rain or ice consider remaining on the valley floor.

To combine

Continue to Molina de Aragón. Check its guide to decide if it fits into the same outing.