Aello Peak is the highest peak of a mountain group called The Twaharpies, just west of Mount Bona in the Saint Elias Mountains of Alaska. While not highly significant in terms of prominence or isolation (it is just west of the summit of Mount Bona), it has a tremendous south face. From the summit, this face drops in just over , and in less than . In terms of vertical relief and steepness, this is one of the major faces in North America.