(https://www.sc4devotion.com/forums/proxy.php?request=http%3A%2F%2Fmembers.ozemail.com.au%2F%7Eccair%2FSC4%2FBMB%2FLANW.jpg&hash=53ec1b5735240de4260c1da3126446ea0099b523)
Looks like CPs Italia terrain mod to me.
That's what I though too, although when I tried it I got snow on all the mountains.
iirc it comes with a number of options for the snowline height, including no snow at all. Alternatively you could tweak the snow line yourself. Blunder has written a guide to tweaking the terrain controller (http://www.simpeg.com/forum/index.php?action=articles;sa=view;article=78) over at Simpeg, it's #1 in the guide. :)