| Survey name | Type | Altitude | Spacing | Flight line distance |
|---|---|---|---|---|
| Washington-Idaho-Montana | M-Dz | 2134 m (barometer) | 3.20 km | 8,441 km |
| Spokane 2013 | M-D | 200 m above ground | 0.40 km | 12,105 km |
| Pullman | M/R-D | 121.9 m | 9.60 km | 2,611 km |
| Spokane | M/R-D | 121.9 m | 1.60 km | 6,187 km |
| Walla Walla | M/R-D | 121.9 m | 9.60 km | 2,298 km |