Apparently in the UK and Canada both Gorge and Ravine are used for narrow valleys with steep sides, according to Wikipedia.
So will we have natural=canyon/gorge/ravine/defile as synonyms, or can we pick the best “British English” term and use it for all 3. See natural=cape, used for points/headlands/etc, and natural=bay, used for fjords/inlets/lagoons/sounds/etc (There is also natural=gully, but these are small features, much narrower and shallower than a valley, and usual formed by different processes: local surface erosion of soft materials like soil, so they are more similar to stream banks than to a valley or gorge) Joseph On Wed, Aug 14, 2019 at 12:28 PM Andrew Harvey <andrew.harv...@gmail.com> wrote: > To me a canyon is narrow with steep cliffs on either side (a place where > you'd go canyoning https://en.wikipedia.org/wiki/Canyoning) and a gorge > is much wider and may have less steep sides.... but then you have the Grand > Canyon in the US which is wide and less steep sides. > > I'd vote for separate tags natural=canyon, etc. Because a valley is very > different to a canyon so you'd want to be explicit about this. > > As an aside, I think route=canyon is good for documenting recreational > canyoning routes. > > On Wed, 14 Aug 2019 at 12:25, Joseph Eisenberg <joseph.eisenb...@gmail.com> > wrote: > >> A few months ago we discussed how to tag gorges, canyons and ravines. >> These are steep-sided valleys, sometimes with cliffs. >> >> Myself and at least one other person were in favor of using >> natural=valley, + valley=ravine / valley=gorge / valley=canyon. >> >> However, there is already a non-English wiki page for natural=canyon, and >> a new English page for natural=gorge - the author of the gorge page thought >> that he would like a single tag, rather than a secondary tag with >> natural=valley. >> >> This would be a little more work for database users, and also you would >> have to pick natural=valley vs =gorge/canyon/etc. >> >> Also, Wikipedia basically says ravine, gorge and canyon are synonyms, >> though as an American from the West, I tend to think of canyons as having >> vertical, rock cliffs, vs ravines and gorges as less steep, but this may be >> a dialectal difference. >> >> Thoughts on this? >> >> -Joseph >> > _______________________________________________ >> Tagging mailing list >> Tagging@openstreetmap.org >> https://lists.openstreetmap.org/listinfo/tagging >> > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging >
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