No idea why you're unhappy with it... looks certainly fine to me. Some postcards:
Just overflying Taku glacier:
And Juneau airport:
It looks so much nicer than the surrounding tiles... sure, there are some fault lines, cliffs and ridges, but I haven't seen any major show-stoppers (and you really should get a decent texture set
it helps). I replaced the default snowfield for the glacier by something more dirty found in the winter texture folder and put the default, smooth snow there in winter - then basically everything else is dirty snow and the glacier is crisp white. Looks much better...