Geophysical investigations, maps. Total intensity aeromagnetic mnp [and accompanying aeromagnetic profiles] of eastern part of Morrison County, Minn., aeromagnetic survey 1947 by J. r, Henderson and M. E. Hill. Scale 1 m. = 1 in. for map and 1 m. = 0.5 in. for profiles, contour interval 50 gammas, n. p.

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