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

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. It is either the tenth- or eleventh-highest peak in North America. Mount Bona and its adjace ...

in the

Saint Elias Mountains The Saint Elias Mountains () are a subgroup of the Pacific Coast Ranges, located in southeastern Alaska in the United States, Southwestern Yukon and the very far northwestern part of British Columbia in Canada. The range spans Wrangell-St. Elias ...

Alaska Alaska ( ) is a non-contiguous U.S. state on the northwest extremity of North America. Part of the Western United States region, it is one of the two non-contiguous U.S. states, alongside Hawaii. Alaska is also considered to be the north ...

. While not highly significant in terms of

prominence In topography, prominence or relative height (also referred to as autonomous height, and shoulder drop in US English, and drop in British English) measures the height of a mountain or hill's summit relative to the lowest contour line encircling ...

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 North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri ...

. 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 is a dormant volcano in the Saint Elias Mountains and the Wrangell Volcanic Field (WVF) of eastern Alaska. Churchill and its neighbor Mount Bona are both ice-covered volcanoes with Churchill having a caldera just east of its ...

, a higher but much gentler peak.

References

American Alpine Club
Library

External links

* * Landforms of Copper River Census Area, Alaska Four-thousanders of the United States Mountains of Unorganized Borough, Alaska Saint Elias Mountains {{CopperRiverAK-geo-stub