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Mar 12, 2014 at 19:30 comment added Joan Pederson The question was not whether contours or contour lines was the prevalent name for this sort of map symbol, but whether there was a term for it that began iso-.
Mar 5, 2014 at 21:42 comment added bib Similarly, the US Geological Survey, the government mapping authority, uses topographic contour lines and bathymetric contour lines, both routinely shortened to contours.
Mar 5, 2014 at 21:17 history answered WS2 CC BY-SA 3.0