What would be great is this data available in a mobile app, with no internet connection required (because even though 3G coverage is good, for a lot of Europeans when you're skiing you're usually on holiday and so roaming). Then I might actually be able to find my way around.
Where does the data come from? Is it manually entered from the Piste Map?
The data comes from the EU-DEM project, with the pistes extracted from OSM.