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1964
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1. Bedrock geology of Duluth and vicinity, St Louis County, Minnesota, GM-1, Plate 1
1964. Taylor, Richard B. Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of Duluth and Vicinity, St. Louis Count...
2. Cretaceous System in Minnesota, RI-5, Plate 1
1964. Sloan, Robert E. Map of Minnesota showing localities of Cretaceous rocks described in the RI-5 report, scale 1 inch = about 35 miles.
3. Cretaceous System in Minnesota, RI-5, Plate 2
1964. Sloan, Robert E. Contour map (lines of equal elevation) of the present altitude of the Pre-Cretaceous unconformity (erosional surface cut into older rocks) in Minne...
4. Geology of the Duluth Gabbro Complex near Duluth, Minnesota, Bulletin 44, Plate 1
1964. Taylor, Richard B. Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of Duluth and vicinity, St. Louis Count...
5. Kaolin clay resources of the Minnesota River valley, Brown, Redwood & Renville Counties: A preliminary report, RI-3, Plate 1
1964. Parham, Wallace E. and Hogberg, Rudolph K. Map of sample localities and described geologic sections (area of formal rock description), Minnesota River Valley, Brown, Redwood, and Renville Co...
6. Surficial geology of the New Brighton quadrangle, Minnesota, GM-2, Plate 3
1964. Stone, J.E. Bedrock geologic cross sections diagrams, New Brighton Quadrangle, Minnesota, scale 1:24,000.