1918. Harder, E.C. and Johnston, A. W. (A. Walfred). Map of the principal part of the Cuyuna Iron-ore District, showing the distribution of known iron-bearing rocks and lines of maximum magnetic attra... Minnesota Geological Survey.
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1918. Harder, E.C. and Johnston, A. W. (A. Walfred). Map and sections showing the geology and workings of the Rowe Mine, Cuyuna Iron-ore District, surveyed in July, 1915, scale 1 inch = about 130 feet. Minnesota Geological Survey.
1918. Harder, E.C. and Johnston, A. W. (A. Walfred). Map and sections showing the geology and workings of the Pennington, Armour No. 1, and Armour No. 2 Mines, Cuyuna Iron-ore District, Minnesota, sur... Minnesota Geological Survey.
1918. Harder, E.C. and Johnston, A. W. (A. Walfred). Map and sections showing the geology and workings of the Thompson Mine, Cuyuna Iron-ore District, surveyed July, 1915, scale 1 inch = 130 miles. Minnesota Geological Survey.
1999. Meyer, Gary N. and Mossler, John H. Map showing primary aggregate (crushed rock, sand and gravel) sources and potential for aggregate development in the Twin cities, seven county Metr... Minnesota Geological Survey.
1999. Meyer, Gary N. and Mossler, John H. Map showing primary aggregate (crushed rock, sand and gravel) sources and potential for aggregate development in the Twin cities, seven county Metr... Minnesota Geological Survey.
1999. Meyer, Gary N. and Mossler, John H. Data base map showing water well and soil boring locations used to develop the interpretions for the map M-102, in the Twin cities, seven county Me... Minnesota Geological Survey.
1999. Meyer, Gary N. and Mossler, John H. Data base map showing water well and soil boring locations used to develop the interpretions for the map M-102, in the Twin cities, seven county Me... Minnesota Geological Survey.
1976. Goebel, Joseph E. Quaternary (glacial) geologic map index of Minnesota, scale 1 inch = about 17 miles. Minnesota Geological Survey.
1993. Meyer, Gary N. Quaternary geology map showing interpretations of Quaternary (Pleistocene [glacial] and Holocene [post-glacial]) surficial geology (distribution an... Minnesota Geological Survey.