| Survey name | Type | Altitude | Spacing | Flight line distance |
|---|---|---|---|---|
| Pend Orielle North-central | M-Dz | 1830 m (barometer) | 1.60 km | 193 km |
| Washington-Idaho-Montana | M-Dz | 2134 m (barometer) | 3.20 km | 8,441 km |
| N.E. Idaho-W. Montana | M-Dz | 2134 m (barometer) | 1.60 km | 14,484 km |
| Spokane 2013 | M-D | 200 m above ground | 0.40 km | 12,105 km |
| Spokane | M/R-D | 121.9 m | 1.60 km | 6,187 km |
| Northeast Washington '73 | M-D | 2134 m (barometer) | 1.60 km | 8,143 km |