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You searched for: Author Geographic Data Technology, Inc. (GDT) Remove constraint Author: Geographic Data Technology, Inc. (GDT) Access Restricted Remove constraint Access: Restricted Subject Transportation Remove constraint Subject: Transportation Place Illinois Remove constraint Place: Illinois
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1. Illinois Major Roads 2002

1999. Geographic Data Technology, Inc. (GDT). Illinois Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Illinois. Environmental Systems Research Institute, Inc. (ESRI).