Title supplied by cataloger based on information from sheet labels. Images are photoreductions of mosaics created from original aerial photographs. Designating symbol GC. Form of individual image numbering: GC-1H-[number], GC-2H-[number], GC-3H-[number], GC-4H-[number], or GC-5H-[number]. "Flying completed 10-3-51". Flown by Woltz Studios, Des Moines, Iowa. "Approximate scale, 1:20,000" [refers to individual images from which mosaic was made]. Contact the Map Collection at The University of Iowa Libraries: http://www.lib.uiowa.edu/maps/contact/