I noticed the same issue on South America's eastcoast and large river mounds too... I think there's no easy solution because the color of mangrove forests and the sea are too near to one another... Using josm's lakewalker to trace sea/island there' s a "maximum gray value to count as water" one can play with...
Roman > In West Africa, I have noticed that mangrove forests are often tagged as > sea > by PGS. Some examples are found at: > > Does anyoe have any idea on how to solve this without having to do manual > tracing for large parts of the coastline and riverbanks? _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk