Opensnowmap offers overlay tile layers for ski pistes and winter sports. Two sets of tiles are available: one with only the pistes, and another one with relief background (shaded relief and contours lines).
It seems that the layer with relief information is of great interest, even in summer.
Sadly, opensnowmap server won’t be able to cope well with the demand on next winter, so in order to keep the server healthy for skiers, the tile usage condition from outside Opensnowmap will change as follow :
- From the 1st of october 2016, a valid referer will be mandatory to fetch tiles from www.opensnowmap.org.
- From the 1st of november 2016, access to tiles with relief from outside opensnowmap.org is not granted anymore and can stop at any time (likely around the 1st).