Training Manual in Topography, Map Reading and Reconnaissance (Classic Reprint) - Hardcover

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Excerpt from Training Manual in Topography, Map Reading and Reconnaissance

9. The beginner always has troub e with contours. He has learned perhaps that a contour is a line'connecting oints of equal elevation that contours do not cross; that a contour 'me either closes on itse or both ends of it go Off the map. But'rules such as these, important as they may be in checkin oupl a;sketcher's work, do not help the beginner much. He is st' hazy as to just what contours are and how they represent'ground forms.

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