This mod adds an item to flatten the ground easily.
Compatible with Minecraft Version 1.7.x to 1.11.x.
1.9.x and 1.10.x are same file.
The latest version is 1.4.2.
Download Links(latest)
Configuration is available in ~/.minecraft/config/com.ch1a.flatworld.cfg.
Detail usage
Look at these two pictures!
Before
After
This is taken only a few minutes!
Recipe
Just right click to use.
Enjoy!