OpenStreetMap

Mountains are hard to map

Posted by mabapla on 24 August 2009 in English.

The weekend before (August 14 to 16) I was on a nice hiking tour with some colleagues. The weather couldn't have been better, it was sunny all the time.
Though if it's been raining recently you can probably see further.

The area (Kleinwalsertal in Austria, Mindelheimer Hütte etc, see the map) was already fairly well mapped. All the hiking trails we took were already there, though a gravel track that is used by a resident of a remote house was mapped as a footway.
And as always, there's still room for improvement. For example, along the way, two houses where you can get snacks and drinks were not mapped. They were originally used for keeping cows but nowadays they're mostly used to feed tourists. ;-)
Also, the forests were often wrong as it is hard to differentiate them from bushland or northern sides of mountains in the Landsat images.

One thing that made me think is this: Some peaks are very hard to reach. We went to the Liechelkopf (so now you find it in OSM) which was quite exhausting but still possible without climbing equipment.
If we need somebody to go to every mountain and take the coordinate so he can put it into OSM, it will take years and years until we will have comprehensive data of alpine mountains. Or maybe it will never happen if we don't have enough climbers in our community.
I wonder if there isn't a directory of alpine mountains that we can use. Maybe from some official bodies of the countries in question?
Else, as I said, we won't be able to provide good maps of alpine regions for quite some time and that would be a bummer.

Location: 87561, Gerstruben, Oberstdorf, Landkreis Oberallgäu, Bavaria, Germany

Discussion

Comment from MichalP on 24 August 2009 at 12:29

you can try wikipedia, there is probably list of peaks.

since some time ago, wikipedia is also under CC licence, so no licence problems (hopefully).

Comment from lyx on 24 August 2009 at 12:40

You could ask the people from your local mountaineering club if they'ld like an introduction to OSM. Maybe they would be interested to map stuff like climbing routes as well.

Comment from davespod on 24 August 2009 at 14:09

If you are looking to Wikipedia, please be aware of the source of the specific item of data, and the copyright status of that source (and if it is not stated, assume it is a copyrighted source). In general, Wikipedia is not recommended, as a lot of the coordinates data comes from copyrighted sources (or come from Geonames which, in turn is usually taken from a copyrighted source such as Google Maps).

Comment from Ale_Zena_IT on 24 August 2009 at 16:17

Don't trust in Wikipedia coordinates: here in NW of Italy I've found displacement of several hundred of meter for the peak I've climbed. Why don't you try to involve some alpinist club in OSM? It's better and funniest.

Comment from Balgofil on 25 August 2009 at 07:10

You can also use the camptocamp data. The access to the WMS layer is:
http://www.camptocamp.org/cgi-bin/c2corg4osm?SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&TRANSPARENT=TRUE&LAYERS=osm&STYLES=&FORMAT=image/png&

You should create a new WMS layer in JOSM and paste that in. Than you get a lot of data.

Comment from Richard on 25 August 2009 at 12:54

Presumably you can find peaks from SRTM (where there aren't voids), no?

You could just turn on the Cycle Map as a background layer in Potlatch and find the contours there.

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