[Tagging] Mapping cave tunnels passable by human
John Sturdy
jcg.sturdy at gmail.com
Thu Aug 14 15:22:56 UTC 2014
On Thu, Aug 14, 2014 at 11:31 AM, Martin Vonwald <imagic.osm at gmail.com> wrote:
> Maybe not completely obvious, but I would agree with Janko. In my opinion, a
> "tunnel" is man-made, while a "cave" is not.
On the whole, yes, but there are some artificial underground cavities
that are referred to as caves, I think, such as large chambers in salt
mines.
__John
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