Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
Linn-Augusta AreaM-Dz457.2 m (barometer)0.40 km17,703 km
North Missouri Ground MagM-DzGround m at ground level1.61 km km
QuincyM/R-D121.92 m 9.66 km2,758 km
St LouisM/R-D121.92 m 9.66 km2,807 km