Quadrangle Maps
| Willisville | Bedrock Geology | 2005 |
 |
| Winfield | Bedrock Geology | 2008 |
 |
| Wolf Lake | Geology | 1993 |
 |
| Wood River | Surficial Geology | 2005 |
 |
| Wood River | Bedrock Geology | 2001 |
 |
| Woodstock | Surficial Geology | 2013 |
 |
| Worden | Surficial Geology | 2004 |
 |
| Yorkville | Surficial Geology | 2011 |
 |
| Zion | Surficial Geology | 2009 |
 |
Pages
Purchase this map online through Shop ISGS*, or contact the Sales and Information Office for more information.
*excludes EDMAP series and student maps