A view of the Sierra del Partacua, across the Tena valley from the village of Hoz de Jaca. On the first day of our hike this view gave us a good idea of the terrain we would see, as we essentially hiked up the east side of the Tena, across he top at Sallent de Gallego, and then up to the cliffs of the Sierra del Partacua on the way back.