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Illinois Geologic Quadrangle Map - Johnston CityBedrock GeologyTheme: Bedrock GeologyAuthor: Nelson, W.J. Description: Two 36" × 30" map sheets; sheet 1 includes map and legends; sheet 2 includes descriptive stratigraphic column, descriptive text, and 2 cross sections. Year Delivered: 2007 File size: 2.4 mb PDF Hardcopy: $15.00 Ordering information for Illinois State Geological Survey Publications.
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| Updated 12/7/2007 SLD | |||||