[talk-au] Canyon/creek names in NSW

[Andrew Harvey]

On Tue, 28 Jan 2025 at 20:02, Tom Brennan <website at ozultimate.com> wrote:

> > I was also thinking if we separately set official_name https://
> > wiki.openstreetmap.org/wiki/Key:official_name where the name is in
> > the GNR. It's just that the current use of that tag is only where
> > there is a different official name to the one signposted/in common
> > use.
>
> Doesn't seem like a bad idea to set the official_name - is that something
> that can be done in bulk? I haven't thought through the implications!
>

It could, though would still need to have some manual review since there's
always going to be matching issues.


>
> > We have natural=gorge https://wiki.openstreetmap.org/wiki/
> > Tag:natural%3Dgorge documented for a canyon. It's not mentioned on
> > that page but on natural=valley https://wiki.openstreetmap.org/wiki/
> > Tag:natural%3Dvalley it recommends to have one way for the waterway
> > and another way for the valley sharing nodes, so I would do the same
> > for natural=gorge.
>
> One challenge with using natural=gorge is that most canyons have multiple
> sections. So there will be multiple sections of the creek that have
> natural=gorge. I assume there would then need to be some kind of relation?
> to connect them together? I haven't done much with relations, so I'm only
> vaguely familiar with their use.
>

True. Mindful of
https://wiki.openstreetmap.org/wiki/One_feature,_one_OSM_element we could
still just repeat the tags along each section as we do with waterways or
highways, but still they will have gaps so not ideal. Perhaps then
https://wiki.openstreetmap.org/wiki/Relation:multilinestring would be
ideal, which is analogous to a multipolygon relation.

> You have to make a call if those "made up" creek names like "Firefly
> > Creek" are in sufficient use to justify applying them to the
> > waterway.
>
> I probably need to make a map and start putting the creek names on it.
> Once it gets sufficient traction in the canyoning community, I can then
> back populate it into OSM :)


Better than issuing an executive order to the canyoning community directing
them to adopt your new name within 30 days.
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