Mountains

I followed this tutorial: http://www.youtube.com/watch?v=fOYaLpSK4XY the guy who does them is really thorough and explains alot, I made the mountain by making a displacement map on photoshop and then converting it to geometry and playing about with a few of the settings like 'aplha is luminence' and then got these mountains:

Then I textured, scaled, and made a little scene using another plane and an ocean shader.