University of Illinois Urbana-Champaign

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Showing 2191–2220 of 2,234 items
Thumbnail for Upper Des Plaines River area assessment
Upper Des Plaines River area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis; Illinois Department of Natural Resources. State Geological Survey Division

Thumbnail for Year-book for 1907.
Year-book for 1907.
Illinois State Geological Survey

Thumbnail for Illinois River Bluffs Area Assessment
Illinois River Bluffs Area Assessment
Illinois Department of Natural Resources

Thumbnail for Lake Michigan bibliography Volume 1
Lake Michigan bibliography Volume 1
Holm, Nancy Peterson; Morgan, Beth McArdle