Okay, in the tutorial that nolgrath linked above, the mountains require a filter called Cutout. For some reason I don't have Artistic, Brush Stroke, or Texture filters in my CS6 Extended. So I can't even use the mountain tutorial without the Artistic filters. :/
EDIT: Nevermind. Going from CS3 to CS6 is such a huge change. They hide them in Filter Gallery... false alarm. Sorry.