Cerro Adela Sur, New Route, and Traverse of Cerro Nato, Doblado, and Grande. It was reported that the German Robert Jasper soloed a new 1000-meter mixed route in 20 hours, giving it a grade of IV and 90°. Beginning in the early evening, he reached the summit shortly before midnight, then continued to traverse south over the summits of Cerro Nato, Doblado and Grande before returning to basecamp. (High Mountain Sports July 1995.)