snowypeaks.max.zip

This is a high-quality mountain made with displacement. Comes with a 1025x1025px PNG displacement map, and a 4096x4096px PNG texture. Variable polycount, since it's up to you to decide whether it should be high or low res. Max file has a plane with render density at about 4, making for about 100,000 polys at render, but you just change the number to make it lower or higher.
Instructions are also included to use the maps provided to create this in any 3d application that supports displacement.

The texture is a high-res lossless PNG file. In places where the terrain are steep, there's less snow than where it's flatter (snow builds up on flatter ground).

Sorry, no environment. You'll have to find your own sky texture.