Surficial Geology of Lacon Quadrangle, Marshall County, Illinois
One 36" × 30" map sheet includes map and legends
GIS Download (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