[Tagging] The showstoppers for mapping Scandinavian nature.

[Florian Kratochwil]

Am 28.12.20 um 06:22 schrieb Graeme Fitzpatrick:
> But if you stop anywhere along it's length, point to a mountain & ask 
> a local, "What Range is that mountain part of?", they'll all say the 
> Great Dividing Range.

You should ask: Is this mountain part of XY Range?. Some mountains are 
in no mountain range.

>
> I've personally seen road signs that say you are crossing the Great 
> Dividing Range.
>
> Lots of articles talk about & map it.
>
> Don't these things all make it verifiable?

I would add "elevation information" as a (in many cases) best verifiable 
information for mountain ranges. I believe many mountain ranges could be 
defined by a more or less clear (<500m) border to where the 
flatland/hills/whatever begin. Maybe it is something underground, like 
different geological zones as well which could help in defining them. 
Maybe it is a significant change in landuse (which also could derive 
from different underground conditions).

So, in my opinion, mountain ranges are verifiable, it is just difficult 
to verify because you have to look at many different sources, maybe even 
ask many people.
This works for many other natural-tags (valley, plain, massif, ...) as 
well.

>
> & on the subject of maps, here's a beautifully fuzzy one! :-) 
> https://en.wikivoyage.org/wiki/Great_Dividing_Range

And here is a precise one: 
https://en.wikipedia.org/wiki/Great_Dividing_Range#/media/File:Topography_of_australia_great_dividing_range.jpg

And here is a precisely mapped OSM-mountain_range (missing 
natural=mountain_range, but this is not the point here): 
https://www.openstreetmap.org/relation/2247685
The border-definition is described as the definition made by the local 
alpine club, see 
https://de.wikipedia.org/wiki/de:Alpenvereinseinteilung%20der%20Ostalpen?uselang=de#/media/Datei:AVE_Ostalpen.png

I have no problem with starting to map a mountain range as super fuzzy 
polygon and then start refining it. As long as it is not "as precise as 
I can do" it should have a fixme=refine or something like that.

If those super long straight lines start making problems in editors (I 
don't think they are now), editors could filter long straight lines. 
JOSM already does this for lines which have no node in your downloaded 
area.

Best Florian
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