Quadrangle Maps
| Lacon | Surficial Geology | 2007 |
 |
| Ladd | Surficial Geology | 2007 |
 |
| Lake Calumet | Surficial Geology | 1939 |
 |
| Lake Zurich | Surficial Geology | 2006 |
 |
| Lawrenceville | Surficial Geology | 2019 |
 |
| Lebanon | Surficial Geology | 2006 |
 |
| Leland | Surficial Geology | 2005 |
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| Leonore | Surficial Geology | 2004 |
 |
| Libertyville | Surficial Geology | 2005 |
 |
| Lick Creek | Geology | 1993 |
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Pages
Purchase this map online through Shop ISGS*, or contact the Sales and Information Office for more information.
*excludes EDMAP series and student maps