map.  Here  is  a  typical  sequence  of  operations  used  to  produce  a  quadrangle
               topographic map:
                        1.  Photographing the area;
                        2.  Surveying the control points;
                        3.  Verifying the map features;
                        4.  Compiling the map manuscript;
                        5.  Scribing and editing the map;
                        6.  Printing the map.
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