| Buried, meltwater stream sed. |
| Clayey lake sediment |
| Coarse meltwater stream sed. |
| Collapsed till&supraglac. sed. |
| Collapsed till; Granstsburg |
| Hillside sediment |
| Lake |
| Meltwater stream sediment |
| Pleistocene stream sediment |
| Sandy lake sed. Grantsburg |
| Sed. of ice-walled lake plains |
| Shallow buried Paleoz. bedrock |
| Stream sediment |
| Till - Superior Lobe |
| Till under sandy lake sed. |
| Till under stream sediment |
| Till w stream-mod. surface |
| Till w stream-modified surface |
| Till, Grantsburg |
| exposed Paleozoic bedrock |
| organic sediment |