Finch, James Kip, 1883- · New York : John Wiley & Sons, Inc. · leaf 46
just like hilltops. If theelevation of every contour was always given the relativeheights could be easily determined. It is common practice,however, not to number all contours and on U. S. G. S. maps;every fifth contour is drawn heavier and numbered. Forthis reason, and in order to make it clear… … Fig. 13. PART OF PAWPAW QUADRANGLE. MD.-W. VA. U. S. G. S. SCALE, 1 : 62,500 CONTOURS AND ELEVATIONS 29 shorter. There is thus a special depression contour sign.*A special hachure sign is also employed for cliffs on contourmaps, and sand dunes, etc., are shown by fine stippling. It is sometimes…
Cartography · Military maps
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