- Mineral Resources
- Online Spatial Data
- Magnetic anomaly
- Aeromagnetic surveys
- Washington
Airborne geophysical surveys
| Survey name |
Type |
Altitude |
Spacing |
Flight line distance |
| Copalis Beach | M/R-D | 121.9 m | 9.60 km | 466 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 |
| Victoria | M/R-D | 121.9 m | 9.60 km | 1,010 km |
| Puget Sound | M-D | 914.4 m (barometer) | 1.60 km | 4,908 km |
| Olympic Peninsula '75 | M-Dz | 1280 m (barometer) | 3.20 km | 1,026 km |
| Olympic Pen.-Offshore | M-Dz | 152.4 m (barometer) | 1.60 km | 1,448 km |
| Olympic Pen.-South | M-Dz | 762 m (barometer) | 3.20 km | 2,471 km |
| East Puget Sound | M-D | 914.4 m (barometer) | 3.20 km | 3,001 km |
| Olympic Mountains | M-D | 2134 m (barometer) | 4.80 km | 1,021 km |
| Puget Lowlands A | M-D | 243.8 m above ground | 0.40 km | 63,464 km |
| Puget Lowlands B (West) | M-D | 243.8 m above ground | 0.80 km | 1,392 km |
