Viniegra de Abajo (00 min) Exit the village on the upper part, taking the old path to Ventrosa towards the cemetery. A little after starting, leave the path and take another one on the left that leads to a warehouse and slightly turns right until it passes under the cemetery. Cross a small river bed and ascend a rocky area until you reach an electricity pole, from where you have a good view of the Najerilla Valley and La Demanda Mountains. Then, the path enters a Portuguese oak forest where you can also find maple trees. You will reach a fence that limits the town of Ventrosa. During a smooth hillside descent, cross a small ravine and, when you reach a pasture area, access the village of Ventrosa after crossing the bridge over a river with the same name. Ventrosa (1 h 08 min) Exit the village by the old path to Brieva, that starts at a trail next to two cattle pavilions. After the second pavilion, you will reach a fenced waste dump. Exit the trail on the right and take a path that ascends on the hillside. Follow the power lines at all times until you reach Brieva. Enter the trail again and continue on it through the bottom of the valley. After about 8 minutes, exit again on the right, cross the ravine and take a hillside path that goes parallel to the trail. The path leads to the trail again, on which you should continue until you reach a hill. There, turn slightly to the right and pass next to a stone boundary mark, known as El Palo. Collado de El Palo (2 h) There are great views of the Valley of Brieva and in the distance the hill of Canto Hincado, where you can find the path to Ortigosa. Start descending among pastures and turn left to descend a ravine towards a forest of Aleppo pines. At the bottom of the ravine you can see water flowing from a rock. After crossing the forest through zigzags and quarries, you will reach the bottom of the valley that leads into another ravine on the right. Connection of two ravines (2 h 20 min) Continue descending on a by-path towards the left at the bottom of the valley, parallel to the power lines. In some stretches, the by-path runs next to pastures and old croplands. You will reach the Barriuso district at Brieva. When you reach the Santa María Church, nowadays abandoned, turn right and access a bridge that leads to the road, where you turn right until you reach the centre of the village. Brieva de Cameros (2 h 47 min) Exit the village by the road to Ortigosa and, at about 200 metres from the last house, take a trail on the right. The trail passes over a cattle pavilion and goes up the Berrinche River towards Peñas de la Escalera. Route (3 h 07 min) Before reaching a quarry, exit the route and take a trail on the right that crosses the stream twice on bridges and passes next to a boundary mark. Border the quarry to the right and, when you reach a well-defined path, enter the gorge and ascend parallel to the river. The last stretch ascends with steep zigzags, called La Escalera (The Stairs), and reaches a shed. Shed at La Escalera (3 h 36 min) Ignore a route to the right, next to the latest construction, that is headed to Collado de Santa Cruz. Continue on a path that zigzags up towards the east and passes above a lonely holm oak. Keep ascending the rocky hill and, after a few wide zigzags, you will reach a pasture area. Continue towards the refuge by following a path surrounded by dense shrub vegetation. The Refuge (3 h 59 min) The path crosses a trail and passes under the refuge and the fountain, where you can see Brieva.