Regional service 12101 from Valladolid to Gijón is running with a three car "media distancia" train of the 470 series (railcar # 9 470 090, intermediate car 7 470 090, cab car 8 470 100). The train is entering the 3072 meter long Perruca tunnel, on the highest point (1270 meter a.s.l.) of the Pajares pass line. From here it's all downgrade to Gijón, 2 meter a.s.l.
