The ruins of this furnace include a forty-five-foot-high, closed-top stack with nine-foot boshes (the cavities in the furnace). The stack was built of large reddish-gray sandstone blocks extracted from Powell's Point by the Bay Furnace Company. The company processed iron here from 1870 to 1879. The hot blast and boilers were located at the top. To convert iron ore taken on the Marquette Iron Range into pig iron, the furnace burned charcoal from hardwood cut from nearby forests and produced in nearby kilns. Ships loaded and unloaded at a company-owned dock on the lake.
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