Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
Rolla '78M-D548.6 m (barometer)0.80 km10,219 km
Gerald QuadrangleM-Dz152.4 m above ground0.40 km1,609 km
Linn-Augusta AreaM-Dz457.2 m (barometer)0.40 km17,702 km
North Missouri Ground MagM-Dz-9999 m at ground level1.60 km km
SE MissouriM-D110 m above ground0.30 km68,548 km
St LouisM/R-D121.9 m 9.60 km2,806 km