Tag Archives: Burke County

Burke County, ND [A1007]

Survey Size: 1,064 line miles, 265 square miles Flight Lines: North-South, ½-mile spacing Tie Lines: East-West, ½-mile spacing Elevation: 300 feet mean terrain clearance Data Provided: Total Magnetic Intensity (IRGF removed) contour map Flight Path Map Reduced-To-Pole of TMI map Vertical Derivative map (optional) Horizontal Gradient (optional) Profiles, on paper (optional) CD/DVD with Flight Line […]

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