1983. 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.
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1983. 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.
1998. Chandler, Val W. and Lively, R. S. Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines... Minnesota Geological Survey.
1998. Chandler, Val W. and Lively, R. S. Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines... Minnesota Geological Survey.
1998. Chandler, Val W. and Lively, R. S. Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines... Minnesota Geological Survey.
1998. Chandler, Val W. and Lively, R. S. Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines... Minnesota Geological Survey.
1998. Chandler, Val W. and Lively, R. S. Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines... Minnesota Geological Survey.
28. Aeromagnetic map of Minnesota, north-central region--Little Fork and International Falls quadrangles
1998. Chandler, Val W. and Lively, R. S. Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines... Minnesota Geological Survey.
1998. Chandler, Val W. and Lively, R. S. Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines... Minnesota Geological Survey.
1998. Chandler, Val W. and Lively, R. S. Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines... Minnesota Geological Survey.