| Survey name | Type | Altitude | Spacing | Flight line distance |
|---|---|---|---|---|
| Detroit | M/R-D | 121.9 m | 9.60 km | 1,342 km |
| Ft Wayne | M/R-D | 121.9 m | 9.60 km | 2,666 km |
| Grand Rapids | M/R-D | 121.9 m | 9.60 km | 3,310 km |
| Northern Ohio West | M-D | 548.6 m (barometer) | 2.40 km | 9,503 km |
| Toledo | M/R-D | 121.9 m | 9.60 km | 1,731 km |