An elongate bedrock ridge eroded by a glacier parallel to the direction of glacier movement is called a(n)

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A roche moutonee is an elongate bedrock ridge that has been smoothed on its up-glacier side and plucked and steepened on its down-glacier side as a glacier passes over it, which is parallel to the direction of glacier movement. An arete is a sharp ridge formed between two glaciers, a cirque is a bowl-shaped depression formed at the head of a glacier, and a horn is a pyramid-shaped peak formed by three or more glaciers eroding a mountain.

An Elongate Bedrock Ridge Eroded by a Glacier Parallel to the Direction