Pyrenean Valleys Attractions

From Jaca C 134 runs west, following the Río Aragón through the Pyrenean Valleys. The river is joined by a series of tributaries coming down from the mountains through extraordinarily beautiful and thinly populated valleys, which can be explored on narrow roads following the course of the streams - the Valle del Hecho, the Valle del Ansó, with a narrow gorge, the Hoz de Biniés, and the Valle del Roncal, formed by the Río Esca. The road up the Roncal valley crosses the Collado de la Piedra San Martín to enter France.