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Map showing peat deposits of Itasca County, Minnesota Maps maps University Of Minnesota university-of-minnesota

1919. Minnesota Geological Survey. Cartographic Details: Scale not given (W 94°25'00"--W 93°03'00"/N 47°53'00"--N 47°01'00"). "Plate IV" in upper right corner. [From Bulletin No. 16,... Minnesota Geological Survey (Minnesota), 1919.