• Aeromagnetic total field, Schreiber, Ontario-U.S.A.
• Aeromagnetic total field, Thunder Bay, Ontario-U.S.A.
• Aeromagnetic total field, Michipicoten Bay, Ontario-U.S.A.
• Aeromagnetic total field, Sault Ste Marie, Ontario-U.S.A.
• Aeromagnetic total field, NTS 41 M, Ontario-U.S.A.