Oops, yes, I failed to spot the mountains weren't varicolor in the Alyssa Faden style - apologies for that! There is enough variety in the varicolor hills to get those to work as snow-covered mountains though, I think, particularly if you adjust the scaling separately for the X- and Y-axes (which I think you've already done anyway).

Varicolor symbols trend towards being grey or washed-out compared to the full colour versions, because of the way they're converted; I know Sue's been battling to improve this lately, though that won't help with all the older symbols. Eukalyptus' suggestion about adding "blending" polygons around the snowy hills/"mountains" is definitely worth trying; maybe in conjunction with a suitable glow around the symbols. Again, that would need experimentation to try out.

Unfortunately, and possibly because of the age of the Annual issue, the Alyssa Faden symbols don't have a "VH" = very high resolution image version, which is what's creating the "potentially blurred" issue when printing. On prints I've done, they looked OK, but I wasn't printing large areas. Certainly zooming-in to the original CC3+ map, the hills do start to look blurred. This image is a tiny extract at the normal Forum size, set at 300 dpi output resolution:

The hills definitely look "soft", though not too bad with the other symbols and labels for distractions. This may not be good enough for what you want though. The original full map is my Community Atlas "Clack Valley" one (Gallery image link).

You can create snowy hills and mountains in this style simply by choosing a suitable colour for the varicolor symbols. There is an Ice fill and an Icefield drawing tool already with CA95, so you'll just need to match the hills and mountains with that. You may need to adjust the bitmap fill scaling too, so the patterning doesn't get lost at this sort of world-level map size.

Part of the problem may be the Alyssa Faden style isn't well-suited to world-size maps, so the default scaling is set against that. As the PDF notes with CA95 note, "Alyssa's style is a great one to depict small to medium level overland maps. For very large maps, the beautiful detail of the symbols might get lost a bit." Doesn't mean you can't do it, and it will probably suit the cartoony look of the original map you'd linked to with its over-sized symbols, just that you have more effort to put in for it to work how you'd like!

Didn't somebody shoot Smaug already though? 😉🎯

This of course is the kind of thing you have to do if you don't want to run your RPGs in the default setting the game comes with (it's Eriador, the OTHER side of the Misty Mountains for those who don't have TOR 2e) 😉

The CSUAC trees are part of the free third-party resources you can download and install for use with CC3+. The process is not straightforward, however. If you want to try, you can find the links on this Forum information topic.