On Thursday 07 January 2016, Elliott Plack wrote: > > What are the current accepts best practices for determining where to > "cut off" the coastline and to begin a river or bay type feature? The > wiki seems to be in disagreement about this, and I've read chatter > about switching to ocean polygons. > > Let's take the mighty Potomac River. It is tidal from the mouth to > points upstream from Washinton, DC, yet at some point it switches to > waterway areas and relations.
See: http://wiki.openstreetmap.org/wiki/Proposed_Features/Coastline-River_transit_placement Current placement at the Potomac is completely fine - i would see room for moving it both downstream to near the bridge north of Colonial Beach or upstream to Alexandria but no particular need for either. I would strongly suggest keeping Chesapeake Bay mapped as coastline. While this is very shallow ecologically it has largely maritime characteristics. -- Christoph Hormann http://www.imagico.de/ _______________________________________________ Talk-us mailing list [email protected] https://lists.openstreetmap.org/listinfo/talk-us
