Trail of el río Iruela Activity · Truchas, La Cabrera, León Image of Truchas, not of the place itself. The first of the municipality's waymarked routes, it climbs the Iruela valley between heaths and hay meadows, linking hamlets of traditional architecture in stone and wood with roofs of slab or rye straw. Photo: Xemenendura (CC BY-SA 4.0) What to see and do in Truchas