7 March 2012
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Illinois County Land Ownership Maps and Atlases
Provides information about Illinois County land ownership maps and atlases held by the Illinois State Library.
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Illinois Public Domain Land Tract Sales
Online searchable database of 550,000 land sales from the 54,740 square miles of the public domain sold within Illinois.
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Location Guide to the General Land Office Survey Plats
A list of organizations that own GLO plats - both originals or copies.