| Survey name | Type | Altitude | Spacing | Flight line distance |
|---|---|---|---|---|
| Manson (Blanden) | M-A | 304.8 m above ground | 1.60 km | 1,770 km |
| Northwest Iowa | M-A | 304.8 m above ground | 1.60 km | 19,199 km |
| Mason City | M/R-D | 121.9 m | 9.60 km | 2,602 km |
| Waterloo | M/R-D | 121.9 m | 9.60 km | 2,634 km |