Departure to reach the full Patagonian steppe: 130 km northeast of Esquel and in the middle of the Chubut River valley - passing before by Gualjaina town- we arrive at Piedra Parada Nature Reserve, where an imposing volcanic stone stands 210 meters high. From there we begin a trekking entering the Cañadón de la Buitrera, flanked by 150-meter-high walls, which gradually decrease as we advance into the area. This place was the “caldera” of an ancient volcano, whose chimney solidified and gave rise to very peculiar geoforms. The ancient walls with traces of the incandescent material also treasure cave paintings that left the ancient populations of the area. Climbers from all over the world come to the Protected Natural Area.