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In 1847 New York millwright and speculator Pliney Pierce built this mill adjacent to the rapidly falling waters of Devils River. First constructed as a sawmill, Rock Mill was quickly converted to a gristmill after the area's available timber was depleted. Serving mostly local German, Czech and Irish immigrant farmers, Rock Mill ground as many as 118 bags of grain a day and produced wheat, rye and graham flour and animal feed. The mill functioned as the social center of rural life here for almost 90 years, ceasing operation in 1934.


  • Rock Mill Sign
  • The Mill