That's a pretty cool map. What source material did you use to plot all these points? Edit: nevermind, I answered my own question after finding this link in the

That's a pretty cool map. What source material did you use to plot all these points? Edit: nevermind, I answered my own question after finding this link in the map (http://cns.miis.edu/stories/090806_cw_dumping.htm http://cns.miis.edu/stories/090806_cw_dumping.htm)