Gilkey Glacier, Alaska

Gilkey Glacier is one of the largest outlet glaciers of the Juneau Icefield. It is banded by numerous medial moraines and is a world-famous example of ogives (the arcs of alternating lighter and darker ice), which form at the base of the Vaughan Lewis Icefall. It is named for mountaineer and early leader of the Juneau Icefield Research Program, Arthur Gilkey who was killed in a climbing accident on K2 in 1953.