Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
Washington-Idaho-MontanaM-Dz2133.6 m (barometer)3.22 km8,441 km
Saddle MountainM-D121.92 m above ground0.40 km459 km
N.E. Idaho-W. MontanaM-Dz2133.6 m (barometer)1.61 km14,484 km
Saddle MountainM/R-D121.92 m above ground0.40 km459 km
SandpointM/R-D121.92 m 1.61 km9,994 km