Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
Mc AlesterM/R-D121.9 m 9.60 km2,769 km
TexarkanaM/R-D121.9 m 4.80 km5,080 km
North Ouachita TrendM-Dz670 m (barometer)2.00 km19,720 km