Key:mountain_pass
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This item marks a mountain pass.
Tools for this tag
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Description
This item marks the highest point of a mountain pass way. Unfortunately, the term "mountain pass" is ambiguous (see Wikipedia). The meaning can be the whole road (or footway) up and down a mountain or the saddle point. Maps usually "special mark" only the latter (often with the corresponding elevation) and that's what mountain_pass=yes is meant to be for. If you want to mark the saddle point, see natural=saddle.
A mountain_pass=yes tag should be the highest point of the way so it's a single node on that way.
Usage
Applies to the "highest node" on a highway = motorway/secondary/footway/... (could be any appropriate "highway"):
Lots of passes are the border between two countries and therefore have names in (at least) two languages. These names should be tagged, e.g. name:it=Passo dello Stelvio and name:de=Stilfserjoch (but keep in addition a simple name=Passo dello Stelvio where possible, otherwise simple renderers may display no name at all). The corresponding language abbreviations can be found at ISO639-1 codes.
Optional:
A lot of the well-known passes have dedicated Wikipedia pages.
Icon
A mountain pass is usually depicted with a "bridge like" symbol:
\ / | | / \
So with a way going trough it, this looks like:
| \ | / | | | / | \ |
If the symbol is not oriented along the way it can look like that
or with simple point with name and altitude.
Examples
I don't know who put this image in, but the maps I had a look at used the pass symbol the way depicted as in the icon section - the bridge like symbol being along the way and not crossing the way as on this image?!? -- Ulfl 11:43, 11 November 2007 (UTC)
The bridge is along the way because it is a way (linear) property. A mountain pass should be a node property. In some case a mountain pass is depicted as a simple point.--Alban 12:55, 11 November 2007 (UTC)





