Iron Mountain is a city in the U.S. state of Michigan. The population was 7,624 at the 2010 census. It is the county seat of Dickinson County, in the state's Upper Peninsula. Iron Mountain was named for the valuable iron ore found in the vicinity.Iron Mountain is the principal city of the Iron Mountain, MI-WI Micropolitan Statistical Area, which includes all of Dickinson County, Michigan and Florence County in Wisconsin. Iron Mountain hosts a few... Show more

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