Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
ButteM/R-D121.92 m 4.83 km4,406 km
ChoteauM/R-D121.92 m 9.66 km2,250 km
HamiltonM/R-D121.92 m 4.83 km3,354 km
Selway-BitterrootM-Dz3352.8 m (barometer)1.61 km9,197 km
Northwest Montana '65M-Dz2743.2 m (barometer)3.22 km6,598 km
Mission RangeM-Dz2743.2 m (barometer)1.61 km2,655 km
Montana '79M-Dz2438.4 m (barometer)0.80 km1,287 km
N.E. Idaho-W. MontanaM-Dz2133.6 m (barometer)1.61 km14,484 km
MissoulaM-Dz2286 m (barometer)1.61 km6,759 km
ButteM-D2743.2 m (barometer)1.61 km11,845 km
WallaceM/R-D121.92 m 4.83 km4,469 km