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Old Rock Mill
The Old Rock Mill is listed on the National Register of Historic Places. The mill is one of the oldest in Manitowoc County and is remarkably well-preserved. The mill’s period of usefulness began around 1825 and processed rock from the surrounding canyon and bedrock. The mill is located on top of a section of the Niagara Escarpment, the same formation that creates Niagara Falls in New York State. The Old Rock Mill is privately owned. It's a part of Devils River campground area.
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