The Peabody Mountains is a mountain range in southeastern Alaska located between the lower Portland Canal and the Marten River. It has an area of 1387 km2 and is a subrange of the Boundary Ranges which in turn form part of the Coast Mountains.Peabody Mountains in the Canadian Mountain Encyclopedia The range is located entirely within Misty Fjords National Monument.

It is about from the Canada–United States border. See also List of mountain ranges

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