Title supplied by cataloger based on information from sheet label. Image is a photoreduction of the mosaic created from original aerial photographs. Designating symbol 19021. Form of individual image numbering: 19021-773-[number]. Year flown 1974. Flown by Harry S. Johnson Co. Inc. Lakeville, Minnesota. Scale 1:38,000 Contact the Map Collection at The University of Iowa Libraries: http://www.lib.uiowa.edu/maps/contact/ Scanned at 300 ppi in Greyscale.
