Title supplied by cataloger based on information from sheet labels. Images are photoreductions of mosaics created from original aerial photographs. Designating symbol BKJ. Form of individual image numbering: BKJ-1GG-[number]."Year Flown 1966" Flown by Park Aerial Surveys, Inc. Louisville, K.Y."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/