I'm with Andrew on this one. It sounds like your research is likely superior to any other recent survey done in the area, and we're not wikipedia here - we value ground truth / original research and it would be a shame it it couldn't be mirrored in the map.
Personally, I'd change it to waterway=no note="blah" because otherwise an armchair mapper will put it back (and I would too, guilty as charged). It's ugly and non-standard, but I'd do it anyway. Ian. On Mon, 24 Jun 2019 at 22:52, Andrew Harvey <andrew.harv...@gmail.com> wrote: > I think you've done a top job detailing the situation, so I'd go with your > findings from on the ground. > > We're not here to simply mirror the NSW LPI Base Map, so I wouldn't worry > too much about what it says. > > On Mon, 24 Jun 2019 at 18:25, cleary <o...@97k.com> wrote: > >> In the past, I added some parts of the Gwydir River to the map using the >> NSW LPI Base Map because I could not see a clear waterway on satellite >> imagery. Since then, I have visited the area twice and cannot actually find >> a river where it is shown on the map. Much of the "river" is in private >> property but public roads cross waterways at various locations. >> >> The western end of the Gwydir River seems not to exist except on the NSW >> LPI Base Map and maps which have used it as a source (including OSM). >> >> As far as I can ascertain, the river used to dissipate into wetlands and, >> if there was enough water, the seepage from the wetlands re-formed into >> waterways. However intensive irrigation has resulted in such low water flow >> that the wetlands are largely dust and water seems never to flow beyond >> them (except perhaps in major flood events which are relatively rare). >> Water from the eastern Gwydir may flow west to the Barwon River via Carole >> Creek into Gil Gil Creek, via the Gingham Watercourse and via the Mehi >> River. But the so-called Gwydir River, west of the wetlands, does not >> appear to exist except on the LPI Map. And part that of the waterway that >> does exist is signposted by the Moree Plains Shire Council with a different >> name (Big Leather Watercourse) at the two places where it crosses public >> roads. GNB uses this name for another branch of the river nearer to Moree >> but locals, including the local council, seem to have a different view. >> >> When visiting the area, I found water to be difficult to discuss with >> locals as there are some strong points of view. Maintaining a river on the >> map may be a political imperative for government but is not consistent with >> OSM's philosophy of mapping what is actually on the ground at particular >> locations. >> >> After reflection, I think the Gwydir River does not really exist west of >> the wetlands and I think it should be deleted from OSM, even though it is >> shown on the LPI Base Map. I propose to delete this section of the river >> and follow the local council signposted name for the more westerly waterway >> that does actually exist at Morialta and Watercourse Roads. >> >> I would appreciate any views on this issue. >> >> _______________________________________________ >> Talk-au mailing list >> Talk-au@openstreetmap.org >> https://lists.openstreetmap.org/listinfo/talk-au >> > _______________________________________________ > Talk-au mailing list > Talk-au@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk-au >
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