| Survey name | Type | Altitude | Spacing | Flight line distance |
|---|---|---|---|---|
| Copalis Beach | M/R-D | 121.9 m | 9.60 km | 466 km |
| Hoquiam | M/R-D | 121.9 m | 9.60 km | 2,282 km |
| Centralia | M-D | 200 m above ground | 0.40 km | 23,501 km |
| Puget Sound 1997 | M-D | 244 m above ground | 0.40 km | 69,202 km |
| Seattle | M/R-D | 121.9 m | 9.60 km | 1,866 km |
| Southwest Washington '51 | M-Dz | 304.8 m above ground | 0.80 km | 4,090 km |
| Puget Sound | M-D | 914.4 m (barometer) | 1.60 km | 4,908 km |
| Olympic Pen.-South | M-Dz | 762 m (barometer) | 3.20 km | 2,471 km |
| Olympic Mountains | M-D | 2134 m (barometer) | 4.80 km | 1,021 km |
| Gray's Harbor | M-D | 228.6 m above ground | 0.40 km | 7,620 km |