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  1. Title: Land-surface topography of the eastern half of the Mesabi Iron Range, northern Minnesota 1899 and 1999, M-157, Plate 1

    Contributors:

    Summary: Map of 1899 data showing land-surface topography, surface hydrology, and infrastructure, east half of Measbi Iron range, scale 1:100,000.

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  2. Title: Bedrock geology of the Mesabi Iron Range, Minnesota, M-163

    Contributors:

    Summary: Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Mesabi Iron Range, scale 1:100,000.

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  3. Title: Land-surface topography of the eastern half of the Mesabi Iron Range, northern Minnesota 1899 and 1999, M-157, Plate 3

    Contributors:

    Summary: Shaded-relief (psuedo 3d) map showing elevation changes as a result of mining between 1899 and 1999 eastern half of Mesabi Iron range, scale 1:100,000.

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  4. Title: Land-surface topography of the eastern half of the Mesabi Iron Range, northern Minnesota 1899 and 1999, M-157, Plate 2

    Contributors:

    Summary: Map of 1999 data showing land-surface topography, surface hydrology, and infrastructure, eastern half of Measbi Iron range, scale 1:100,000.

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  5. Title: Maps of bedrock geology and superimposed magnetic on gravity (SMOG) anomaly for east-central Minnesota, M-132

    Contributors:

    Summary: Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments); gravity (interpretation of gravity data collected with ground based meters indicating differences in rock density of rocks in the upper crust) and magnetic anomaly (interpretation of magnetic data collected from airborne surveys, the map contours (lines of equal magnetic intensity) indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth) map of east-central Minnesota, scale 1:200,000.

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  6. Title: One-hundred years of mining: alterations to the physical and cultural geographyof the western half of the Mesabi Iron Range, northern Minnesota, M-118, Plate 4

    Contributors:

    Summary: Historical and Modern Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) on the western Mesabi range, scale 1:100,000.

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  7. Title: One-hundred years of mining: alterations to the physical and cultural geographyof the western half of the Mesabi Iron Range, northern Minnesota, M-118, Plate 2

    Contributors:

    Summary: Drainage and cultural features relative to the Historical and modern land surface topography on the western Mesabi range, scale 1:100,000.

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  8. Title: One-hundred years of mining: alterations to the physical and cultural geographyof the western half of the Mesabi Iron Range, northern Minnesota, M-118, Plate 1

    Contributors:

    Summary: Historical and modern land surface topography on the western Mesabi range, scale 1:100,000.

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  9. Title: One-hundred years of mining: alterations to the physical and cultural geographyof the western half of the Mesabi Iron Range, northern Minnesota, M-118, Plate 3

    Contributors:

    Summary: Topographic disturbance between 1899 and 1999 on the western Mesabi range, scale 1:100,000.

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  10. Title: Aeromagnetic map of Minnesota, north-central region--Bigfork quadrangle

    Contributors:

    Summary: Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines of equal magnetic intensity) indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth.

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  11. Title: Aeromagnetic map of Minnesota, north-central region--Grygla quadrangle

    Contributors:

    Summary: Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines of equal magnetic intensity) indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth.

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  12. Title: Aeromagnetic map of Minnesota, north-central region--Blackduck quadrangle

    Contributors:

    Summary: Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines of equal magnetic intensity) indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth.

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  13. Title: Aeromagnetic map of Minnesota, north-central region--Upper Red Lake quadrangle

    Contributors:

    Summary: Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines of equal magnetic intensity) indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth.

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  14. Title: Aeromagnetic map of Minnesota, north-central region--Fosston quadrangle

    Contributors:

    Summary: Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines of equal magnetic intensity) indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth.

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  15. Title: Aeromagnetic map of Minnesota, north-central region--Baudette quadrangle

    Contributors:

    Summary: Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines of equal magnetic intensity) indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth.

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  16. Title: Gravity and magnetic modeling of the Duluth Complex in the Allen 75-minute quadrangle, St Louis County, Minnesota, M-90

    Contributors:

    Summary: Geophysical (gravity and magnetic) data and modeling of subsurface geology from the geophysical data for part of the Duluth Complex, scale 24,000.

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  17. Title: Aeromagnetic map of Minnesota, north-central region--Little Fork and International Falls quadrangles

    Contributors:

    Summary: Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines of equal magnetic intensity) indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth.

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  18. Title: Aeromagnetic map of Minnesota, north-central region--Roseau quadrangle

    Contributors:

    Summary: Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines of equal magnetic intensity) indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth.

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  19. Title: Aeromagnetic map of Minnesota, north-central region - Angle Inlet and Oak Island quadrangles

    Contributors:

    Summary: Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines of equal magnetic intensity) indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth.

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  20. Title: Aerial gamma radiation in Minnesota and adjacent areas of North Dakota and South Dakota, M-83

    Contributors:

    Summary: Maps showing general Quaternary age surface geology of Minnesota and distribution of uranium, thorium and potassium-40 in surface sediments, scale 1:3,168,000.

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