This is about as sheer as you can get. The file contains two things...

The save where there is a pregenerated world where it has my mods and Deon's Genesis mod and the bonfire mod.

It also has the world_gen file in the save folder if you don't want to use all the mods. Just over write your current world_gen with the one in the save.

Remember if you want to generate a world like this one again, go to generate world using parameters and no random generation.

This is the kind of area you are looking at to embark at for the most perfect sheer cliff and such.