Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
Puget Sound 1997M-D244 m above ground0.40 km69,202 km
SeattleM/R-D121.9 m 9.60 km1,866 km
Puget SoundM-D914.4 m (barometer)1.60 km4,908 km
Olympic Pen.-SouthM-Dz762 m (barometer)3.20 km2,471 km
Olympic MountainsM-D2134 m (barometer)4.80 km1,021 km
Puget Lowlands B (West)M-D243.8 m above ground0.80 km1,392 km
Gray's HarborM-D228.6 m above ground0.40 km7,620 km