How do I draw a glacier?

[Azélor]

I'd say imagine it like a bead of water siting on a flat surface and then draw that edge like you would a hill, and then put fractures into it and anywhere the edge may flow off an overhang.

So maybe something like this?:
GlacierTry1.jpg

That looks like a very dry cheese.

[Falconius]

That looks like a very dry cheese.

Mmm... you're right. Which I wouldn't mind eating right about now