The Moncayo or Pico de San Miguel is with its 2,314 meters of altitude the highest peak of the Iberian System and the provinces of Zaragoza and Soria. It is also one of the most important peaks of the Iberian Peninsula. We climb to the peak from Haya Seca and on the way back we visit a lower peak, the Cerro de San Juan.
- On the parking lot of Haya Seca (1) we walk to the end of it until we find some marks on the right, not very visible, indicating a trail (2) that we must enter.
- The trail ascends, initially through the forest and later through a long stretch of stones. We pass a ruin of a little house. Later at a fork (3) we take the trail to the left, which makes us ascend through the forest.
- In this part of the hike it is easy to lose track. The goal is to reach the Col of Pasalobos (4). When we approach the col, the environment opens and we can see the Moncayo on the left, so we turn left to the east.
- The trail to the Moncayo is well marked and easy to follow, albeit a little steep. From the Moncayo we follow the trail to the Cerro de San Juan that we see in front of us. Between the Moncayo and the Cerro de San Juan we pass a trail to the right, but we continue straight on (6).
- Once on the Cerro de San Juan (7) we continue towards the Collado del Alto de las Piedras (8). From there begins a steep descent. We end at a trail with yellow-white markings (9) where we turn left.
- The trail ends near the Sanctuary (10), where we turn left on the dirt road that returns us to the parking lot of Haya Seca (1).