Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
HamiltonM/R-D121.92 m 4.83 km3,354 km
Washington-Idaho-MontanaM-Dz2133.6 m (barometer)3.22 km8,441 km
N.E. Idaho-W. MontanaM-Dz2133.6 m (barometer)1.61 km14,484 km
MissoulaM-Dz2286 m (barometer)1.61 km6,759 km
WallaceM/R-D121.92 m 4.83 km4,469 km