Hi Guilia, You can label any location with the LABEL command, and put symbols or shapes on it with the PLOT/VS/OVER or POLYGON/OVER command ! An example contour plot. yes? use coads_climatology yes? contour/L=1 sst; go fland ! Make a mark at a location 180 degrees lon, 18 lat yes? PLOT/VS/OVER/SYM=22 180,18 ! Label this location. You could use180,19 as the first two ! arguments to move the label up a bit. yes? LABEL/USER 180,18,-1,0,0.1, "@CR180,18" ! Or, make a single polygon at a location yes? go polymark poly/over/nokey/nolabel/palette=red {180}, {-22}, " ", circle, 0.5 yes? label/user 180,-22,-1,0,0.1,"@CR180,-22" If there is a time axis on the plot, see the FAQ, How can I overlay symbols on a plot with a time axis? http://ferret.pmel.noaa.gov/Ferret/FAQ/custom_plots/time_series_symbol_overlay.html Ansley Giulia Clai wrote: hallo, does anybody know how to put a flag on a contour graphic for a lon, lat point? Giulia |