| Survey name | Type | Altitude | Spacing | Flight line distance |
|---|---|---|---|---|
| Hoquiam | M/R-D | 121.9 m | 9.60 km | 2,282 km |
| Mt. St. Helens '11 | M/EM-D | -9999 m | -9999.00 km | 759 km |
| Longview North | M-D | 304.8 m above ground | 0.80 km | 13,888 km |
| Centralia | M-D | 200 m above ground | 0.40 km | 23,501 km |
| Vancouver | M/R-D | 121.9 m | 9.60 km | 2,341 km |
| South Cascades | M-Dz | 2438 m (barometer) | 1.60 km | 5,632 km |
| Mt. St. Helens '79 | M-D | 3505 m (barometer) | 1.00 km | 281 km |
| S. Washington Cascades | M-D | 2438 m (barometer) | 1.00 km | 6,960 km |
| Mt. Margaret | M-D | 304.8 m above ground | 0.80 km | 1,094 km |
| Mt. St. Helens '81 | M/EM-D | 50 m above ground | 0.20 km | 64 km |
| Mt. St. Helens Refly | M-D | 3505 m (barometer) | 1.00 km | 281 km |