Ontonagon may refer to several places in Michigan, United States:
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Ontonagon, Michigan
Ontonagon ( ) is a village in the U.S. state of Michigan. The population was 1,285 at the 2020 census. It is the county seat and only village of Ontonagon County.
The village is located within Ontonagon Township, at the mouth of the Ontonagon R ...
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Ontonagon Township, Michigan
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Ontonagon County, Michigan
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Ontonagon River
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Ontonagon Indian Reservation
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Ontonagon Boulder
The Ontonagon Boulder (/ˌɒntəˈnɑːɡən ˈboʊldəɹ/) is a boulder of native copper originally found in the Upper Peninsula of Michigan, United States, and now in the possession of the Department of Mineral Sciences, National Museum of Na ...
, a massive rock of pure copper
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