On the Alaska-Canada boundary 4 mi SE of Mount Aylesworth and 44 mi. NE of Yakutat, St. Elias Mts.
Named jointly by Board on Geographic Names (BGN) and Canadian Permanent Committee on Geographical Names (CPCGN) in 1923 for John D. Armour, Judge of the Supreme Court of Canada and one of the original British members of the Alaskan Boundary Tribunal in 1903. Name was proposed by Lawrence Martin of the U.S. State Department.
Art Lewis Glacier, East Nunatak Glacier,
Mountains:Mount Armour, Mount Aylesworth, Mount Duff, Mount Herbert, Mount Wade,