1891. Winchell, Horace V. (Horace Vaughn), 1865-1923 and Winchell, N. H. (Newton Horace), 1839-1914. Map showing iron mines in the Vermilion range, scale 1 inch = about 0.12 miles. Minnesota Geological Survey.
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1964. Hogberg, Rudolph K. and Parham, Wallace E. Map of sample localities and described geologic sections (area of formal rock description), Minnesota River Valley, Brown, Redwood, and Renville Co... Minnesota Geological Survey.
1997. Alexander, E. C., Jr., Alexander, Scott C., Green, J.A., and Mossler, J.H. Description of the bedrock geology, karst features and depth to bedrock as it relates to hydrogeology in LeRoy Township of Mower County, Minnesota,... Minnesota Geological Survey.
2005. Bauer, Emily J., Jirsa, Mark A., and Lively, R. S. Map of 1899 data showing land-surface topography, surface hydrology, and infrastructure, east half of Measbi Iron range, scale 1:100,000. Minnesota Geological Survey.
2005. Bauer, Emily J., Jirsa, Mark A., and Lively, R. S. Map of 1999 data showing land-surface topography, surface hydrology, and infrastructure, eastern half of Measbi Iron range, scale 1:100,000. Minnesota Geological Survey.
2005. Bauer, Emily J., Jirsa, Mark A., and Lively, R. S. 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,... Minnesota Geological Survey.
1982. Heutmaker, J.F. and Morey, G.B. Map showing linear features, (lineaments) on the Hibbing quadrangle, scale 1:250,000. Minnesota Geological Survey.
1977. Heutmaker, J.F. and Morey, G.B. Map showing linear features, (lineaments) on the International Falls quadrangle, scale 1:250,000. Minnesota Geological Survey.
1977. Morey, G.B. Map showing linear features, (lineaments) on the Two Harbors quadrangle, scale 1:250,000. Minnesota Geological Survey.
420. Lower and Middle Precambrian stratigraphic nomenclature for east-central Minnesota, RI-21, Plate 1
1978. Morey, G.B. Generalized interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of east-central Minnesota, ... Minnesota Geological Survey.