(*) A figure, shown in each quadrangle bounded by ticked graticule lines on aeronautical charts, which represents the height in thousands and hundreds of feet, above mean sea level, of the highest known natural or manmade feature in that quadrangle, plus suitable factors to allow for inaccuracy and incompleteness of the topographical heighting information.
MAXIMUM ELEVATION FIGURE
Meaning of MAXIMUM ELEVATION FIGURE in English
DOD English dictionary of military terms. Английский словарь военных терминов DOD. 2012