Stunts Map Editor
From Stunts Wiki
Also known as MapEd, this is a terrain creation utility created by Stephane Jantzen.
This program is just a terrain editor, with a display of the full terrain at once. When your terrain is created you have to create the track by using another tool.
This progam has a full fill option to fill a rectangle part of the map automatocally with one terrain element, usefull to create big hills quickly.
Sadly, the program has a mouse support with a big problem : a routine bug allow the program to draw the terrain over the program menu, making this tool nearly impossible to use.