| Alluvium on Floodplains |
| Organic Materials |
| Marl |
| Eolian Sands / Sandy Sediments |
| Clayey and Silty Lacustrine Deposits |
| Loamy Wisconsin Till |
| Clayey Wisconsin Till |
| Wisconsin Outwash |
| Residuum from Carbonate Rocks |
| Residuum from Calcareous Clastic Rocks |
| Residuum from Non-calcareous Clastic Rocks |
| Residuum from Acid/Silicic Igneous or Metamorphic Rocks |
| Colluvium from Various Sources |
| Disturbed Areas / Urban Land / Mining Regolith / Pits |
| Not Surveyed or No Digital Data Available |
| Rock outcrop and rubble |
| Dune land |
| Water |