Survey Size: 24,400 line miles (39,268 line km) Flight Lines: East-West, ½-mile to 7,000 feet spacing (0.8 to 2.1 km) Tie Lines: North-South, 10-mile spacing (16 km) Elevation: 2,500 feet barometric (762 m) Date Flown: May to August, 1982 Data Provided: Total Magnetic Intensity (IRGF removed) contour map Flight Path Map Reduced-To-Pole of TMI map
Survey Size: 45,500 miles Flight Lines: East-West, ½-mile 1-mile, and 2,250 feet spacing Tie Lines: North-South, 5-mile spacing Elevation: 4,700 feet barometric, draped over higher elevations Instrumentation: Geometrics G-813 magnetometer, 0.05 gamma sensitivity Date Flown: December, 1985, to April, 1986 Data Provided: Total Magnetic Intensity (IRGF removed) contour map Flight Path Map Reduced-To-Pole of TMI
