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/ USGS: Water Resource Data Illinois 1998                     archive.org/details/usgs-water-resource-data-illinois-1998
1999 Education & Reference from U.S. Geological Society


Archives (1)

Name	Format	# Files	Size	Date
USGS - Water Resource Data - Illinois 1998.iso	CD Disc Image	6	61.2 MB	1999-01-01

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USGS - Water Resource Data - Illinois 1998_disc.jpg