[Tagging] landform promontory
61sundowner at gmail.com
Thu Oct 4 00:42:27 UTC 2018
On 04/10/18 09:40, Joseph Eisenberg wrote:
> Where are these features located?
Inland. Not near the sea.
For the same reason you would not tag a cape as a ridge or a peak you
would not tag a promontory as a ridge or a peak.
Not all ridges end as a promontory - some have gradual slopes. Not all
promontory are a peak, they may have a line at about the same height
leading away from them.
They are named as 'point' here but the closest in wikipedia I could find
is promontory. So I used that term.
Node 5946074161 https://www.openstreetmap.org/node/5946074161
This does have a named ridge leading to it
Perhaps 'cape' should be dropped in favour of promontory as that could
be used for both land and sea? :)
> I haven't seen anything called a "promontory" in the western USA: we
> would call these features ridges or cliffs if they are hills or
> mountains above lower land, or if they are surrounded by water they
> would be a headland, peninsula, cape, or "point".
> In OSM, there is already a tag for natural=cape, and the wiki page
> suggests it can be used for all water promontories:
> "Cape <http://en.wikipedia.org/wiki/en:Cape_%28geography%29> - a
> prominent, elevated piece of land sticking out into the sea or large
> lake. Includes capes, heads, headlands, peninsulas and (water)
> https://wiki.openstreetmap.org/wiki/Tag:natural%3Dcape - used 11,000
> "Natural=*" is perfect in this case, because headlands/capes are
> natural features formed by geological processes and natural erosion.
> So if you are tagging "promontories" that project into a lake or sea,
> then use natural=cape on a point.
> If you are tagging hills or mountains on land, use natural=ridge as a
> way along the center of the ridge in most cases.
> You can also add natural=peak to a node, if there is a local high
> point that is named.
> "Natural=*" is also totally appropriate in this case; ridges and peaks
> are also formed by natural geological and meteorological processes, no?
> I've been meaning to ask the folks at OpenStreetMap Carto to start
> rendering the names of ridges as a name label, so that mappers will
> not be tempted to add place=locality or natural=peak when the named
> feature is really a ridge.
> On Thu, Oct 4, 2018 at 8:20 AM Warin <61sundowner at gmail.com
> <mailto:61sundowner at gmail.com>> wrote:
> There is not a tag for the land form 'promontory' meaning a raised
> of land projecting into a low land or water body.
> See https://en.wikipedia.org/wiki/Promontory
> I have come across them as named 'points' and have been tagging a
> few of
> them as place=locality for lack of something better.
> The nearest thing is natural=cape, but that only applies to sea
> retaliated things and I don't like the key 'natural' as it applies to
> both 'natural' and 'unnatural' thing making a nonsense of the word.
> So I think the best tag would be landform=promontory.
> Other ideas?
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