Airborne geophysical surveys

Survey name Type Altitude Spacing Flight line distance
Crystal CityM/R-D121.9 m 2.40 km5,994 km
Texas Coastal Plain '56M-Dz152.4 m above ground1.60 km20,317 km
Three Rivers (Freer)M-D152.4 m above ground1.60 km2,526 km