| Recent Alluvium |
| Old Alluvium |
| Deep Loess |
| Fine-Textured Lacustrine Deposits |
| Eolian Sands / Sandy Sediments |
| Till (Loamy Wisconsin Till) |
| Till (Clayey Wisconsin Till) |
| Till (Low-lime Wisconsin Till) |
| Outwash (Wisconsin Age) |
| Till (Illinoian and pre-Illinoian Till) |
| Outwash (Illinoian and pre-Illinoian Age) |
| Residuum from Acid Clastic Rocks |
| Residuum from Limestone and Dolostone |
| Residuum from Calcareous Clastic Rocks |
| Colluvium |
| Organic Materials |
| Mining Regolith / Pits |
| Disturbed Areas / Urban Land |
| Water |