Geologic Map of the Mermet Quadrangle, Johnson and Massac Counties, Illinois
48" × 33" single map sheet; includes map, legend, descriptive text, descriptive stratigraphic column, inset map and cross sections (2)
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