Here it is:

The Civilization Map Editor !!!!!

The map informations will be changed while playing civilization. For this you 
must modify the civ.exe file and load civ_map.exe. 
(I hope) it works with the versions 1 and 5 of the game. It only works in the 
VGA mode.
The file civ_map.zip is compressed by zip.exe version 1.9. It contains the 
exe file, a desciption with all hints I've found and the sources.

