|Name||Africa & Parts of the Mid. East|
A large 4096x4096 heightmap of Africa with bits of the middle east and parts of south Italy and Spain.|
It will also work fairly well at 2048x2048 (I've tested both sizes very well)
Its not the most accurate map, but I have yet to see other maps that include the entirety of Africa for OpenTTD.
I apologize for inaccuracies with mountains, hills, and rivers (some may be in the wrong place or shouldn't exist on the map)