This disc contains 510 image files scanned at the Aerial Photography Field Office in Salt Lake City, Utah. File information: Various Counties, ND (BAL 1V to BAL 7V) Format : Tiff Size : 185 MB Resolution : 20 Microns Work order number: 1026940 Questions or comments please contact us: Aerial Photography Field Office 2222 W 2300 South Salt Lake City, UT 84119 801-844-2900 www.apfo.usda.gov