Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
Pend Orielle North-centralM-Dz1830 m (barometer)1.60 km193 km
Washington-Idaho-MontanaM-Dz2134 m (barometer)3.20 km8,441 km
Scotchman PeakM-D2134 m (barometer)1.60 km413 km
Saddle MountainM/R-D121.9 m above ground0.40 km458 km
N.E. Idaho-W. MontanaM-Dz2134 m (barometer)1.60 km14,484 km
SandpointM/R-D121.9 m 1.60 km9,994 km
SpokaneM/R-D121.9 m 1.60 km6,187 km
Northeast Washington '73M-D2134 m (barometer)1.60 km8,143 km
Gleason MountainM/R-D121.9 m above ground0.40 km579 km