Geologic Map of the Mill Creek and McClure Quadrangles, Alexander and Union Counties, Illinois
46" × 34" single map sheet; includes map, legend, descriptive text, descriptive stratigraphic column, inset map and cross section
GMDM GIS download contains ArcGIS geodatabase and metadata, ArcReader map document, and published map in PDF format (GIS file contents).
Purchase this map online through Shop ISGS*, or contact the Sales and Information Office for more information.
*excludes EDMAP series and student maps