In a couple of hours I put together some cliffs and rock chunks that I custom made. They need a lot of work still, but will be available for ordinary landscapes, snowscapes, jungle and desert.
Here is a very brief look.
http://www.youtube.com/watch?v=oiTeV6uAUTU
The idea is to provide mountain slabs similar to Skyrim.
I could do with some help. Someone who is better at texturing than I am, and some decent rock textures too!