JT, I think people are a little non-plussed by your request because generating a mountain is so simple - *if you know what to do*,, which is, when you open the default scene, you'll see that the "Terrain" tab is open, and in the list below, you can see "Heightfield shader 01" with a plus sign beside it. Click on the plus sign, and "Heightfield generate 01" appears indented below. Click on this, and then below you'll see a whole bunch of settings appear. The one you want is "Generate now" (tick "Auto generate" if you want it to reappear every time you re-open the file). Et voila, there is your mountain.
I've attached a basic file with mountains ("Auto generate" is ticked) , grass, snow and fake stones (created in the "Shaders" tab), for you to play with.
