English: Caption from postcard: "Missippi Valley Iron Co. Waukon, IA, X2496" (could be 12496). This was an iron ore benefication mill built in 1913 by the Missouri Iron Company just north of Waukon, Iowa to process limonite ore. Another photo of the same plant is given in the Iowa Geological Survey Annual Report for 1914, page 85, along with a description of the mine and mill, and the 1930's USDA orthophotos show the mill buildings shortly before their demolition.
This image has been edited to remove spots in the sky.
Date
(the mill opened in 1916 and was shut down in 1918 by World War I)
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