Sheridan County Aeromagnetic Survey

Northeastern Montana

ACQUISITION SPECIFICATIONS

Survey Size: 4,500 line miles

Line Spacing: ¼-mile

Line Direction: North-South

Tie Lines: 5 miles, East-West

Elevation: Approximately 300 feet above ground.

DELIVERABLES

• Total Magnetic Intensity (IGRF removed) (RTP), contours on mylar
• Flight Path, on mylar
• Reduced-to-Pole TMI (RTP), color on paper
• Second Vertical Derivative (SVD), color on paper
• Shaded Relief of Horizontal Gradient, two illuminations
• Enhanced Linear Feature Analysis*, color on paper

Digital Data

• Profiles and grids, on CD-ROM or diskette