Summer has arrived (although still rather cold around here :) and it's time to get outdoors and do some rock climbing.

But I discovered that there seems to be no way to tag crags, routes, etc (well, there's the sport=climbing tag, but how to use it is rather ambiguous). So I've started putting together a set of tags:
http://wiki.openstreetmap.org/index.php/Proposed_features/Climbing

Representing vertical features is quite a difficult problem - at the moment I have opted to just mark the start of each route with a single node. However, I'm not sure how to show the difference between a path leading to the start of the route and one leading to the end - maybe the solution is to allow the use of ways to show the route, even though the start and end will often be practically on top of each other.