The route starts in the Ambasaguas district (Karrantza). Karrantza is the largest valley in Biscay, a place where nature shows us its most fascinating side. It is located on the border with Burgos and Cantabria, protected by the Montes de Ordunte to the south and by the Parque Natural de Armañón (natural park) to the north. On this route, we opted for the Sierra de Ordunte, a mountain range of more than 20 km crowned by several peaks exceeding 1,000 m. This is a demanding itinerary that will lead us to strive to access real watchtowers in this beautiful enclave. The course, in a continuous upward progression, crosses forests to quickly give way to the meadows of this breeding environment.
The first remarkable point is at the summit of Ubal. Continuing along cattle tracks and roads, you climb to a second level near Cotobasero Peak, about 15 kilometers from the start. The ascent continues to the forest and ends up at a steep zigzag slope that perches us in the shade of Mount Peñalta and Ordunte.
From there, the progression will go downhill to briefly return to the Brena Pass through which we will very quickly access the next mountain called Balgerri, an ideal place to take a break and access this summit with a breathtaking view of the Karrantza Valley.
The route continues along the summit line where the Portillo de Gospeñata, the Pico del llso de Pedranzo and Mount Maza Pando stand out, in a continuous descent that will bring us closer to Collado del Monte Burgueño, to pass through other heights that will offer us magnificent views such as Alto de Jornillo-Povedal, Alto de La Escrita, where we join the Bi-630 highway, and with extreme caution, you will reach the starting point in about 8 kilometers.
Distance: 55 Km
Grade: 1890 m
Itinerary type: Loop
Estimated time: 6
Type of terrain: Tracks, concrete roads, trails and asphalt
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