Dear all,the following line of code print me a map of an area with the points I need. I only new two minor adjustments ??? ggmap(mp, darken = 0) + geom_point(aes(Longitude, Latitude, colour =Error), data = PlotPoints, size = 6)+ scale_colour_gradient2(low=muted("red"),mid="green", high=muted("blue"),trans = "log")+geom_point(aes(Longitude,Latitude),data=stationaryPoint,colour="Red",shape="s",size=12) I want to specify my color ramp to have the specific scale 0,000010,040,130,4 I also want to plot in a way where the fonts will be binger and the legends as well.Any ideas how I can do that? I would like to thank you for your reply RegardsAlex [[alternative HTML version deleted]]