What is a crest? A crest is the topmost ridge of a mountain chain.
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What is mountains ?explain in detail..
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What defines a mountain? - Marmota Maps
What is a Mountain? “A natural elevation of the earth's surface rising more or less abruptly to a summit” Fun Fact: Sutter Buttes = smallest mountain. - ppt download
What is a mountain? – Mountains in the Classical Tradition