About ChicagoSummary.map.sit This is a StuffIt-compressed map for the Mac/WinAPRS programs covering approximately a 60-mile radius of Chicago, IL. It is a summary map showing only major roads and water features. It is intended to be a complementary map to the detailed "chicagoa.map" produced January '97 by David Chesser. Major numbered routes will display as 2-pixel (wider) lines under MacAPRS. File name is Chicago Summary.map, and menu name is Chicago Summary. Produced by N0QBF using MacDLG v1.10.