Bedrock Geology of Grand Detour Quadrangle, Ogle and Lee Counties, Illinois

Grand Detour Bedrock map 1
Grand Detour Bedrock map 2

Two 30" × 35" map sheets; sheet 1 contains map and legends; sheet 2 includes descriptive stratigraphic column, cross section, descriptive text, and 2 figures.

2012; originally 2011
Series ID: 
IGQ Grand Detour BG
GIS Download (GMDM): 

GIS download contains ArcGIS geodatabase and metadata, ArcReader map document, and published map in PDF format (GIS file contents).

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