[Tagging] Feature Proposal - Voting - Couloir 2

[Bert -Araali- Van Opstal]

Gully or gorge = created by flowing water or ice, also applicable for desert

Couloir = similar appearance but not created by erosion but by other
phenomena which only appear in mountains.

Added by a complete novice in this matter but understood from the rather
technical description in the proposal.

On 19/02/2021 03:11, Kevin Kenny wrote:
>
> On Thu, Feb 18, 2021 at 6:29 PM Joseph Eisenberg
> <joseph.eisenberg at gmail.com <mailto:joseph.eisenberg at gmail.com>> wrote:
>
>     Re: " A couloir is a narrow gully with vertical sides (usually of
>     rock) and a steep slope. Around here, the usual term is 'rock
>     chute' rather than 'couloir', but the terms are nearly synonymous.
>     Not every gully is inclined enough, or has enough gradient, to be
>     called a couloir or rock chute. Where does the couloir end and the
>     talus begin? Where there are no longer walls on either side. 
>     Which means that there's no longer a gap to be loaded with snow in
>     a crosswind, so you tend to get very different ice conditions."
>
>     Thank you, Kevin. That is the sort of explanation I was looking
>     for, from the proposal author or other proponents. 
>
>     If the tag is defined to be:
>
>     "a small, narrow gully or valley between near-vertical rock
>     cliffs, which is steeply inclined upward"
>
>     That could be a definition that is specific enough to be used.
>
>     However, I get the impression that a small, steep stone canyon in
>     a desert (e.g. Utah, Arizona) would not necessarily be called a
>     Couloir or "rock chute" if it is never covered in stone or ice. Is
>     that correct? 
>
>     Does a couloir need to have a snow-covered portion during the cold
>     season? All the example images seem to have snow filling the "chute."
>
>     1) Is this gully a
>     couloir: https://www.americansouthwest.net/california/death_valley/golden-canyon-gully_l.html 
>
>     2) What about these
>     gullies: https://cdn2.apstatic.com/photos/climb/105848296_medium_1557863064.jpg
>
>     3) Or this steep slot
>     canyon: https://www.roadtripryan.com/go/resources/content/utah/moab/sgr-canyon/user-submitted/xryancornia-1488896313480.jpg.pagespeed.ic.VxV1KW4RTx.jpg
>
>
> I'd call all of those rock chutes.  I've only ever seen the term
> 'couloir' in common use when there's ice and snow about, but I'm not a
> desert hiker. Any rock chute in the Northern US is going to be choked
> with snow in the winter.
>
> I'd also call #3 a chimney, which is (pretty much) a rock crack that's
> big enough to get your whole body into and climb with friction holds
> on the two walls. (The walls need to be nearly parallel for this to
> work, otherwise, it will be off-width at some point.)
>
> https://youtu.be/5dzsWXicn-o?t=301 is a couloir in summer, I suppose. 
> It's crazily dangerous in winter. It's mapped
> at https://www.openstreetmap.org/way/493353882 just as bare_rock with
> cliffs on either side.
> -- 
> 73 de ke9tv/2, Kevin
>
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