Quadrangle Maps
| Marine | Surficial Geology | 2004 |
 |
| Marion | Surficial Geology | 2010 |
 |
| Marion | Bedrock Geology | 2007 |
 |
| Marseilles | Surficial Geology | 2004 |
 |
| Marseilles | Aquifer Sensitivity | 2004 |
 |
| Mascoutah | Surficial Geology | 2010 |
 |
| Maunie | Surficial Geology | 2014 |
 |
| McClure, Mill Creek | Geology | 1994 |
 |
| McHenry | Surficial Geology | 2003 |
 |
| Mermet | Geology | 1997 |
 |
Pages
Purchase this map online through Shop ISGS*, or contact the Sales and Information Office for more information.
*excludes EDMAP series and student maps