A shameless plug for a mod that I've done over on Nexus, called "Dramatic Mountains".
http://skyrim.nexusmods.com/mods/44199/?
If I could name the mod technically it would be called "Multi-layered (parallax) for Icy Rocks, Icy Snow and Higher Definition for Mountains up close (with low resolution decal shading) for a very stylized look and effects".
Skyrim Mountains were designed to look amazing at distances. But if you have explored mountains and noticed that when you get up close to them that the textures become very blocky and breaks immersion for you, then this mod endeavors to make this a bit more enjoyable when you are actually amongst the Mountain ranges. Even with HD textures you will get a relatively lower resolution simply because Mountain pieces are so large.
Please download and endorse ( I don't care if you don't like it...kidding :-P )


It's a trap!