Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
Rolla '78M-D548.6 m (barometer)0.80 km10,219 km
Springfield '83M-D609.6 m (barometer)1.60 km7,201 km
RollaM/R-D121.9 m 9.60 km2,566 km
SpringfieldM/R-D121.9 m 9.60 km2,909 km