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548. Aeromagnetic map of Minnesota, northwestern region, Plate 1

Maps University Of Minnesota Public content
1989. Chandler, Val W. Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected... Minnesota Geological Survey.

549. Aeromagnetic map of Minnesota, northwestern region, Plate 2

Maps University Of Minnesota Public content
1989. Chandler, Val W. Total magnetic intensity anomaly, contour, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map contours (line... Minnesota Geological Survey.

550. Aeromagnetic map of Minnesota, southeastern region, Plate 1

Maps University Of Minnesota Public content
1991. Chandler, Val W. Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected... Minnesota Geological Survey.