| Alluvium on Floodplains |
| Organic Materials |
| Deep Loess / Deep Silty Sediments |
| Eolian Sands / Sandy Sediments |
| Clayey and Silty Lacustrine Deposits |
| Loamy Wisconsin Till |
| Clayey Wisconsin Till |
| Low Carbonate Loamy Wisconsin Till |
| Wisconsin Outwash |
| Illinoian Till |
| Residuum from Carbonate Rocks |
| Residuum from Calcareous Clastic Rocks |
| Residuum from Acid Clastic Rocks |
| Residuum from Acid/Silicic Igneous or Metamorphic Rocks |
| Colluvium from Various Sources |
| Parent Material Not Assigned |
|
| Disturbed Areas / Urban Land / Mining Regolith / Pits |
| No Survey |
| Water |