[Tagging] artificial cave, historic military shelter
dieterdreist at gmail.com
Sun Sep 4 10:09:43 UTC 2016
sent from a phone
> Il giorno 04 set 2016, alle ore 11:40, Richard <ricoz.osm at gmail.com> ha scritto:
> Also, I would
> argue that "natural" implies natural
> and there have been enough informal
> proposals for man_made=shaft and similar.
I think a shaft is pretty different from those grottoes I mentioned, in being a vertical, regular structure and normally longer, while the artificial, decorative/recreational grottoes are not very deep. Also the former is usually of technical character, while the latter is decorative.
maybe man_made=grotto for these cases?
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