Hydrologic Unit Map-1974, State of Illinois

January 1, 1975

No abstract available.

Publication Year	1975
Title	Hydrologic Unit Map-1974, State of Illinois
DOI	10.3133/hu13
Authors	Water Resources Division U.S. Geological Survey
Publication Type	Report
Publication Subtype	USGS Numbered Series
Series Title	Hydrologic Unit
Series Number	13
Index ID	hu13
Record Source	USGS Publications Warehouse

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