Horn
U.S. Geological Survey photo by Bruce Molnia (fair use policy)
Glaciers grind into mountains by eroding the cirques at their heads. If a mountain has cirques all around it, the glaciers may carve it into a tall, faceted remnant called a horn. This example in the Juneau Icefield of southeastern Alaska displays two cirques, and there must be one or two more on the back side. On the left side is an arête.
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