From Centennial History of Alpena County, Michigan (1892/1903) by David D. Oliver, page 31: "The Trowbridge dam slacks the water up the river a short distance above the North Branch, and the perpendi
From Centennial History of Alpena County, Michigan (1892/1903) by David D. Oliver, …
From Centennial History of Alpena County, Michigan (1892/1903) by David D. Oliver, page 31: "The Trowbridge dam slacks the water up the river a short distance above the North Branch, and the perpendi
From Centennial History of Alpena County, Michigan (1892/1903) by David D. Oliver, …