| Survey name | Type | Altitude | Spacing | Flight line distance |
|---|---|---|---|---|
| Manson (Blanden) | M-A | 304.8 m above ground | 1.60 km | 1,770 km |
| Northeast Iowa | M-A | 304.8 m above ground | 1.60 km | 12,713 km |
| Mason City | M/R-D | 121.9 m | 9.60 km | 2,602 km |
| Waseca | M-Dz | 304.8 m above ground | 1.60 km | 13,759 km |
| Southeastern surveys part 3 | M-D | 200 m above ground | 1.00 km | km |