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551. Stratigraphy and structure of the Mesabi range, Minnesota, Bulletin 38, Plate 7
1954. White, David A. Sheet 2 of 11 sheets, Structure contour (contour lines of equal elevation that map features in the subsurface produced by rock deformation or erosi...
552. Stratigraphy and structure of the Mesabi range, Minnesota, Bulletin 38, Plate 8
1954. White, David A. Sheet 3 of 11 sheets, Structure contour (contour lines of equal elevation that map features in the subsurface produced by rock deformation or erosi...
553. Stratigraphy and structure of the Mesabi range, Minnesota, Bulletin 38, Plate 9
1954. White, David A. Sheet 4 of 11 sheets, Structure contour (contour lines of equal elevation that map features in the subsurface produced by rock deformation or erosi...
554. Subsurface till stratigraphy of the Todd County area, central Minnesota, RI-34, Plate 1
1986. Meyer, Gary N. Bedrock topography (elevation of the bedrock surface) and cross sections, Todd County, Minnesota, scale 1 inch = about 5 miles.
555. Superimposed magnetic on gravity anomaly map of southwest Minnesota, M-122
2002. Chandler, Val W. Gravity (interpretation of gravity data collected with ground based meters indicating differences in rock density of rocks in the upper crust) and ...
556. Superimposed magnetic on gravity anomaly map of the Central Duluth Complex and western part of the Beaver Bay Complex, Lake and St Louis Counties, Minnesota, M-117
2001. Chandler, Val W. Gravity (interpretation of gravity data collected with ground based meters indicating differences in rock density of rocks in the upper crust) and ...
557. Superimposed magnetic on gravity anomaly map of the Duluth Complex and related rocks, northeastern Minnesota, M-120
2001. Chandler, Val W. Gravity (interpretation of gravity data collected with ground based meters indicating differences in rock density of rocks in the upper crust) and ...
558. Surface formations and agricultural conditions of northeastern Minnesota, Bulletin 13, Plate 1
1917. Leverett, Frank. and Sardeson, Frederik W. Sheet 2, Map of the Surface (glacial landforms) Formations and agricultural conditions of northeastern Minnesota, scale 1:500,000.
559. Surface formations and agricultural conditions of northwestern Minnesota, Bulletin 12, Plate 1
1915. Leverett, Frank. Map showing the Pioneer iron mine, surveyed July 13, 1889, scale 1 inch = about 6.25 feet.
560. Surface formations and agricultural conditions of the southern half of Minnesota, Bulletin 14, Plate 1
1919. Leverett, Frank. and Sardeson, Frederik W. Sheet 3, Map of the Surface (glacial landforms) Formations and agricultural conditions of the southern half of Minnesota, scale 1:500,000.