MaxMounts is a MaxScript for creating realistic mountains in Autodesk 3ds Max, in a single click. Several tweak-able parameters have been provided to get an infinite variety.
The script also has an Environment creation function to create Sky, Sun and Clouds with correct colors depending on the Sun's position in the sky.
With this script you also get full support and one free upgrade.
The script is available via TurboSquid and CGArena Store, where you get: