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An Average Slope Map of Illinois
Wesley Calef and Robert Newcomb
Annals of the Association of American Geographers
Vol. 43, No. 4 (Dec., 1953), pp. 305-316
Stable URL: http://www.jstor.org/stable/2560898
Page Count: 12
You can always find the topics here!Topics: Sloping terrain, Maps, Arithmetic mean, Relief maps, Terrain, Fall lines, Slope of a line, Geometric angles, Moraines, Subjectivity
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