We walk through the municipality of Balgorra which, in its furthest part, towards the east, belongs to Sánsoain. Shortly after starting the path we advance next to a natural wall of rock and earth where we can appreciate the morphology of the soil in this area. We can see that the rock is a fine-grained sandstone that will become thicker as we ascend. This sandstone is cemented with limestone which, given the rainfall in the area, will produce basic soils with an abundance of clay like the ones we see between the rocks. If you leave the path on a rainy day you can see the abundance of clay on your boots.
As soon as we cross under the railway track we see the Fuente del Rey. After passing the motorway tunnel, we continue along a path that runs parallel to the Balgorra ravine. We begin to ascend little by little along the slopes of the Guindilla Mountains. On the way we can take a detour for a minute to visit "cabaña redonda", a peculiar ovoid-shaped stone construction documented by Jimeno Jurío. In about 2 km we will reach a high point after a steep final slope from where we have a good view of the whole valley with Tafalla in the background.
Undulating landscape, populated by scrubland, cereal fields and dotted with the occasional holm oak, all closely watched by the slender windmills that have changed the view of the landscape. After passing by the hamlet of Pozuelo, we climb a little and take a narrow path between kermes oak trees. Shortly after, we start a gentle descent along the Balgorra path that will take us to the starting point of this route.
