Between Meares and Yale Glaciers, 7.3 mi SSW of Mount Witherspoon and 36 mi WNW of Valdez, Chugach Mountains.
Aspero is a Spanish word meaning "rough," given about 1957 by members of the Chugach Mountains Expedition, sponsored by the Arctic Institute of North America (Nielsen, 1963, p. 135).
Brilliant Glacier, First Branch Columbia Glacier (not official), Harvard Glacier, Meares Glacier, Pedro Glacier, Second Branch Columbia Glacier (not official),
Lakes:Mountains:Aspero Peak, Blackcliff Mountain, Mount Cardozo, Columbia Peak, Mount Defiant, Mount Edison, Mount Einstein, Mount Elusive, Mount Gilbert Lewis, Mount Glenn, Mount Grosvenor, Mount Michelson, Mount Thor, Mount Valhalla, Mount Witherspoon,
Peaks: