1970. Green, John C., 1932-. Generalized interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of Central part of Vermilli... Minnesota Geological Survey.
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1970. Green, John C., 1932-. Lineament (features that form a line) map of Gabbro Lake Quadrangle, Lake County, Minnesota, scale 1 inch = about 1.5 miles. Minnesota Geological Survey.
1970. Green, John C., 1932-. Summary of top-direction (identification of the tops of volcanic lava flows, characteristics that can be used for the identification of lava flow t... Minnesota Geological Survey.
1944. This is one in a series of 455 mid 20th century fire insurance maps produced by the Fire Insurance Rating Organization of New Jersey. Municipal Fir...
1949. This is one in a series of 455 mid 20th century fire insurance maps produced by the Fire Insurance Rating Organization of New Jersey. Municipal Fir...
1919. Broderick, T.M. and Grout, Frank F. (Frank Fitch), 1880-1958. Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Eastern Mesabi District, Minneso... Minnesota Geological Survey.
1953. This is one in a series of 455 mid 20th century fire insurance maps produced by the Fire Insurance Rating Organization of New Jersey. Municipal Fir...
1947. This is one in a series of 455 mid 20th century fire insurance maps produced by the Fire Insurance Rating Organization of New Jersey. Municipal Fir...
1986. Kanivetsky, Roman. Distribution of major element chemistry in Cretaceous age aquifer rocks, scale 1:1,000,000; Quaternary age glacial and stream sediments, scale 1:2... Minnesota Geological Survey.
1986. Kanivetsky, Roman. Distribution of major element chemistry in the Cedar Valley-Maquoketa-Dubuque-Galena aquifer; Franconia-Ironton-Galesville aquifer; St. Peter aquif... Minnesota Geological Survey.