Aello Peak is the highest peak of a mountain group called The Twaharpies, just west of Mount Bona

Mount Bona

Mount Bona is one of the major mountains of the Saint Elias Mountains in eastern Alaska, and is the fifth highest independent peak in the United States. Mount Bona and its adjacent neighbor Mount Churchill are both large ice-covered stratovolcanoes...

 in the Saint Elias Range of Alaska

Alaska

Alaska is the largest state in the United States by area. It is situated in the northwest extremity of the North American continent, with Canada to the east, the Arctic Ocean to the north, and the Pacific Ocean to the west and south, with Russia further west across the Bering Strait...

. While not highly significant in terms of prominence or isolation (it is just 5 miles (8 km) west of the summit of Mount Bona), it has a tremendous south face. From the summit, this face drops 7000 feet (2,133.6 m) in just over 1 miles (1.6 km), and 8500 feet (2,590.8 m) in less than 2.5 miles (4 km). In terms of vertical relief and steepness, this is one of the major faces in North America

North America

North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...

.

The Twaharpies also include two other named summits, Ocypete Peak and Celeno Peak, to the southwest of Aello Peak.
Other summits of the Mount Bona massif include University Peak, also a peak with huge, steep relief, and Mount Churchill

Mount Churchill

Mount Churchill is a volcano in the Saint Elias Mountains and the Wrangell Volcanic Field of eastern Alaska. Churchill and its higher neighbor Mount Bona about to the southwest are both large ice-covered stratovolcanoes, with Churchill being the fourth highest volcano in the United States and the...

, a higher but much gentler peak.