Mallos de Riglos

The Mallos de Riglos are towering conglomerate rock formations near Riglos in Aragón, Spain. Their steep cliffs make them a landmark of Spanish rock climbing.

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Via ferrata: A protected climbing route equipped with fixed cables, ladders, or other metal aids. Unlike most routes on the Mallos, a via ferrata provides fixed aids along the ascent.
Mallo Pisón: A prominent, steep-sided rock tower in the Mallos de Riglos group. Its immense face is a defining sight within the group.
Alluvial fan: A fan-shaped deposit of sediment formed where flowing water spreads out onto flatter ground. Ancient fan deposits supplied much of the coarse sediment later consolidated into the Mallos.
Riglos: A village in the province of Huesca, Aragón, Spain, beside the Mallos de Riglos. The village and rock towers are closely linked in local identity and tourism.
Free climbing: Climbing in which a climber progresses using the rock, while equipment serves only for protection. Many routes on the Mallos are climbed this way on natural holds.
Mallo Fire: A distinctive rock tower in the Mallos de Riglos, named for climber Rabadá and guide Navarro’s route. The tower’s route is a celebrated example of the area’s climbing heritage.
Diagenesis: The physical and chemical changes that turn sediment into sedimentary rock after deposition. Cementation transformed the deposited pebbles and sand into resistant conglomerate.
Aragonese Pre-Pyrenees: The mountain belt south of the central Pyrenees in northeastern Spain. The towers are among the most recognizable landscapes of this region.
Aid climbing: A climbing technique in which equipment is used to help a climber ascend the rock. It contrasts with free climbing on the cliffs’ demanding faces.
Mallo Visera: A curved, overhanging rock tower in the Mallos de Riglos group. Its pronounced overhang sets it apart from the group’s more vertical walls.