1998. University of Chicago Library. This file gives 1998 boundaries of the districts used by the Chicago Police Department. It is derived largely from the maps at the Police Departmen...
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1998. The Purdue historical campus map collection was scanned and georeferenced by Purdue University Libraries. The physical maps were collected as Purdu... Purdue University Libraries.
1998. University of Chicago Library. This is the ward map for Chicago that was in effect between 1998 and early 2003. The file was derived from the Tiger 1998 voting district file. Geo...