1980. Ervin, C. Patrick, Ikola, Rodney J., and McGinnis, Lyle D. (Lyle David), 1931-2017. Bouguer gravity anomaly map (anomaly related to different densities of rocks in the upper crust, Bouguer anomaly is a corrected difference between ... Minnesota Geological Survey.
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1973. Durfee, George, Ikola, Rodney J., and McGinnis, Lyle D. (Lyle David), 1931-2017. Bouguer gravity anomaly map (anomaly related to different densities of rocks in the upper crust, Bouguer anomaly is a corrected difference between ... Minnesota Geological Survey.
1980. Ervin, C. Patrick. Bouguer gravity anomaly map (anomaly related to different densities of rocks in the upper crust, Bouguer anomaly is a corrected difference between ... Minnesota Geological Survey.
1980. Chandler, Val W., Ervin, C. Patrick, and Van De Voorde, B.W. Bouguer gravity anomaly map (anomaly related to different densities of rocks in the upper crust, Bouguer anomaly is a corrected difference between ... Minnesota Geological Survey.
1977. Carlson, D. R. (David Roy), McGinnis, Lyle D. (Lyle David), 1931-2017, Pederson, R., and Schafersman, J.S. Bouguer gravity anomaly map (anomaly related to different densities of rocks in the upper crust, Bouguer anomaly is a corrected difference between ... Minnesota Geological Survey.
1970. Ikola, R.J. Bouguer gravity anomaly map (anomaly related to different densities of rocks in the upper crust, Bouguer anomaly is a corrected difference between ... Minnesota Geological Survey.
1970. Craddock, Campbell, Kolehmainen, V., and Mooney, Harold Morton. Bouguer gravity anomaly map (anomaly related to different densities of rocks in the upper crust, Bouguer anomaly is a corrected difference between ... Minnesota Geological Survey.
1813. Cary, John, approximately 1754-1835. Cartographic Details: Scale approximately 1:5,500,000 ; (E 65°57'00"--E 78°08'00"/N 35°55'00"--N 22°12'00"). Covers Northwestern India. Relief show... J. Cary ; London.
1717. Schen, Peter, 1661-1715, Valck, G. (Gerard), 1651 or 1652-1726., and Visscher, Nicolaes, 1649-1702. Cartographic Details: Scale approximately 1:4,400,000. Relief shown pictorially. Oriented with north to the right. From Visscher's Atlas minor, 171... Vischer; Amstelodami.
4360. Sioux County, Iowa
1907. Shedd & Wright Mfg. Co. Townships shown in color; includes grid lines, cities, schools, churches. Alt. title from copyright statement: "Sioux Co., Iowa." 25 x 32 centimet... Shedd & Wright (Austin, Minn.), 1907.