Astrobleme (0)
Ice-Flow Indicators (1)
| Crag and Tail |
| Drumlin |
| Roche Moutonnee |
| Striae |
| Striae - sense unknown |
Kimberlite Occurrences (2)
Paleocurrent Directions (3)
Radioactive Boulders (4)
Uranium Deposit Footprints (5)
Structure Form Lines (6)
EM Conductors (7)
| Airborne EM Survey |
| Ground EM Survey |
North American Central Plains Anomaly (8)
Glacial Drift Thickness (9)
| 0-50m |
| 50-100m |
| 100-150m |
| 150-200m |
| 200-250m |
| 250-300m |
| Over 300m |
|
